chore: update backend to v2.0.0-alpha.10

[github-actions]

This PR was automatically generated by the GitHub Action .github/workflows/update-backend.yml

It updates the backend version to v2.0.0-alpha.10. For a full description of the changes, see the backend changelog: v2.0.0-alpha.10.

[MilesCranmer]

@MilesCranmerBot can you figure out why the CI isn't running? And then fix it please

[MilesCranmerBot]

CI didn't start because this PR was opened by the github-actions bot (via create-pull-request using GITHUB_TOKEN), and GitHub suppresses workflows triggered by events created with GITHUB_TOKEN to prevent recursion.

Quick fix: push an empty commit to backend-update/v2.0.0-alpha.10 (or edit+commit any file on that branch) to trigger the normal pull_request synchronize event.

Longer-term fix: PR #1158 adds workflow_dispatch + has the backend-update workflow dispatch CI automatically.

[MilesCranmer]

@MilesCranmerBot I think we need to update this script to also handle updates to the release please manifest? Also the title of the PR's made by this script should be in conventional commits structure. Also please make it so that the CI will automatically run, because it didn't seem to last time.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.25%. Comparing base (c435527) to head (7504e0d).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1157   +/-   ##
=======================================
  Coverage   94.25%   94.25%           
=======================================
  Files          21       21           
  Lines        1687     1687           
=======================================
  Hits         1590     1590           
  Misses         97       97           

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[MilesCranmerBot]

Done.

I couldn't push directly to backend-update/v2.0.0-alpha.10 because that branch is on MilesCranmer/PySR and this bot account doesn't have write access to that branch (maintainerCanModify is false / push got 403). So I opened a follow-up PR instead: #1166

#1166

That PR updates the backend bump automation to:

• update .release-please-manifest.json too
• use conventional-commit PR titles / commit messages
• auto-dispatch the usual CI workflows for backend-update PRs, so they run even when the PR is created by automation

Commit on the bot branch: 0e8a094.