chore(deps)(deps): Bump pydantic from 2.10.3 to 2.12.4 in /backend

[dependabot]

Bumps pydantic from 2.10.3 to 2.12.4.

Release notes

Sourced from pydantic's releases.

v2.12.4 2025-11-05

v2.12.4 (2025-11-05)

This is the fourth 2.12 patch release, fixing more regressions, and reverting a change in the build() method of the AnyUrl and Dsn types.

This patch release also fixes an issue with the serialization of IP address types, when serialize_as_any is used. The next patch release will try to address the remaining issues with serialize as any behavior by introducing a new polymorphic serialization feature, that should be used in most cases in place of serialize as any.

• Fix issue with forward references in parent TypedDict classes by @​Viicos in #12427.

  This issue is only relevant on Python 3.14 and greater.

• Exclude fields with exclude_if from JSON Schema required fields by @​Viicos in #12430

• Revert URL percent-encoding of credentials in the build() method of the AnyUrl and Dsn types by @​davidhewitt in pydantic-core#1833.

  This was initially considered as a bugfix, but caused regressions and as such was fully reverted. The next release will include an opt-in option to percent-encode components of the URL.

• Add type inference for IP address types by @​davidhewitt in pydantic-core#1868.

  The 2.12 changes to the serialize_as_any behavior made it so that IP address types could not properly serialize to JSON.

• Avoid getting default values from defaultdict by @​davidhewitt in pydantic-core#1853.

  This fixes a subtle regression in the validation behavior of the collections.defaultdict type.

• Fix issue with field serializers on nested typed dictionaries by @​davidhewitt in pydantic-core#1879.

• Add more pydantic-core builds for the three-threaded version of Python 3.14 by @​davidhewitt in pydantic-core#1864.

Full Changelog: pydantic/pydantic@v2.12.3...v2.12.4

v2.12.3 2025-10-17

v2.12.3 (2025-10-17)

What's Changed

This is the third 2.13 patch release, fixing issues related to the FieldInfo class, and reverting a change to the supported after model validator function signatures.

• Raise a warning when an invalid after model validator function signature is raised by @​Viicos in #12414. Starting in 2.12.0, using class methods for after model validators raised an error, but the error wasn't raised concistently. We decided to emit a deprecation warning instead.
• Add FieldInfo.asdict() method, improve documentation around FieldInfo by @​Viicos in #12411. This also adds back support for mutations on FieldInfo classes, that are reused as Annotated metadata. However, note that this is still not a supported pattern. Instead, please refer to the added example in the documentation.

The blog post section on changes was also updated to document the changes related to serialize_as_any.

Full Changelog: pydantic/pydantic@v2.12.2...v2.12.3

v2.12.2 2025-10-14

v2.12.2 (2025-10-14)

What's Changed

... (truncated)

Changelog

Sourced from pydantic's changelog.

v2.12.4 (2025-11-05)

GitHub release

This is the fourth 2.12 patch release, fixing more regressions, and reverting a change in the build() method of the AnyUrl and Dsn types.

This patch release also fixes an issue with the serialization of IP address types, when serialize_as_any is used. The next patch release will try to address the remaining issues with serialize as any behavior by introducing a new polymorphic serialization feature, that should be used in most cases in place of serialize as any.

• Fix issue with forward references in parent TypedDict classes by @​Viicos in #12427.

  This issue is only relevant on Python 3.14 and greater.

• Exclude fields with exclude_if from JSON Schema required fields by @​Viicos in #12430

• Revert URL percent-encoding of credentials in the build() method of the AnyUrl and Dsn types by @​davidhewitt in pydantic-core#1833.

  This was initially considered as a bugfix, but caused regressions and as such was fully reverted. The next release will include an opt-in option to percent-encode components of the URL.

• Add type inference for IP address types by @​davidhewitt in pydantic-core#1868.

  The 2.12 changes to the serialize_as_any behavior made it so that IP address types could not properly serialize to JSON.

• Avoid getting default values from defaultdict by @​davidhewitt in pydantic-core#1853.

  This fixes a subtle regression in the validation behavior of the collections.defaultdict type.

• Fix issue with field serializers on nested typed dictionaries by @​davidhewitt in pydantic-core#1879.

• Add more pydantic-core builds for the three-threaded version of Python 3.14 by @​davidhewitt in pydantic-core#1864.

v2.12.3 (2025-10-17)

GitHub release

What's Changed

This is the third 2.12 patch release, fixing issues related to the FieldInfo class, and reverting a change to the supported after model validator function signatures.

• Raise a warning when an invalid after model validator function signature is raised by @​Viicos in #12414. Starting in 2.12.0, using class methods for after model validators raised an error, but the error wasn't raised concistently. We decided to emit a deprecation warning instead.
• Add FieldInfo.asdict() method, improve documentation around FieldInfo by @​Viicos in #12411. This also add back support for mutations on FieldInfo classes, that are reused as Annotated metadata. However, note that this is still not a supported pattern. Instead, please refer to the added example in the documentation.

The blog post section on changes was also updated to document the changes related to serialize_as_any.

v2.12.2 (2025-10-14)

... (truncated)

Commits

• 5c842df Prepare release v2.12.4
• c678a71 Bump pydantic-core to v2.41.5
• a7cd292 Bump cloudpickle to v3.1.2
• 21f6278 Bump actions/setup-node from 5 to 6
• 8d6be8f Bump astral-sh/setup-uv from 6 to 7
• 17865ea Bump actions/upload-artifact from 4 to 5
• 90ad0af Bump actions/download-artifact from 5 to 6
• 18e6672 Drop testing under PyPy 3.9
• 650215b Document workaround for MongoDsn default port
• e326790 Fix example of for bytes_invalid_encoding validation error
• Additional commits viewable in compare view

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[astrion-studio]

/gemini review and address why the two checks failed

[astrion-studio]

@codex review and address why the two checks failed

[gemini-code-assist]

Code Review

This pull request updates pydantic from version 2.10.3 to 2.12.4. This is a minor version bump that includes new features and bug fixes. I've left a comment highlighting a potential breaking change in pydantic v2.12 that you should be aware of. Please ensure the application is thoroughly tested after this upgrade to catch any potential regressions.

[gemini-code-assist]

Heads up: pydantic v2.12 introduced changes to the behavior of serialize_as_any. If your codebase relies on serialize_as_any=True, this update may introduce breaking changes in serialization logic. It's recommended to thoroughly test model serialization to prevent unexpected output. The release notes mention that a new polymorphic serialization feature is planned to replace serialize_as_any in many cases.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Keep pydantic within FastAPI’s supported range

Bumping pydantic to 2.12.4 conflicts with fastapi==0.115.5, which still declares an upper bound of <2.12. When the CI jobs run pip install -r requirements.txt, dependency resolution fails before linting or tests can start, which explains both failing checks. Either revert the bump or upgrade FastAPI (and any other consumers) to a version that allows 2.12.x.

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