fix(deps): update object-c packages

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
objc2	dependencies	minor	0.5.2 -> 0.6.0
objc2-app-kit	dependencies	minor	0.2.2 -> 0.3.0
objc2-foundation	dependencies	minor	0.2.2 -> 0.3.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: backend/nyanpasu-egui/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path backend/nyanpasu-egui/Cargo.toml --package objc2@0.5.2 --precise 0.6.0
    Updating crates.io index
error: failed to select a version for the requirement `objc2 = "^0.5.1"`
candidate versions found which didn't match: 0.6.0
location searched: crates.io index
required by package `eframe v0.31.1`
    ... which satisfies dependency `eframe = "^0.31"` (locked to 0.31.1) of package `nyanpasu-egui v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/nyanpasu-egui)`
    ... which satisfies path dependency `nyanpasu-egui` (locked to 0.1.0) of package `clash-nyanpasu v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/tauri)`

File name: backend/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path backend/tauri-plugin-deep-link/Cargo.toml --package objc2@0.5.2 --precise 0.6.0
    Updating crates.io index
error: failed to select a version for the requirement `objc2 = "^0.5.1"`
candidate versions found which didn't match: 0.6.0
location searched: crates.io index
required by package `eframe v0.31.1`
    ... which satisfies dependency `eframe = "^0.31"` (locked to 0.31.1) of package `nyanpasu-egui v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/nyanpasu-egui)`
    ... which satisfies path dependency `nyanpasu-egui` (locked to 0.1.0) of package `clash-nyanpasu v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/tauri)`

File name: backend/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path backend/tauri/Cargo.toml --package objc2@0.5.2 --precise 0.6.0
    Updating crates.io index
error: failed to select a version for the requirement `objc2 = "^0.5.1"`
candidate versions found which didn't match: 0.6.0
location searched: crates.io index
required by package `eframe v0.31.1`
    ... which satisfies dependency `eframe = "^0.31"` (locked to 0.31.1) of package `nyanpasu-egui v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/nyanpasu-egui)`
    ... which satisfies path dependency `nyanpasu-egui` (locked to 0.1.0) of package `clash-nyanpasu v0.1.0 (/tmp/renovate/repos/github/libnyanpasu/clash-nyanpasu/backend/tauri)`