chore(deps): bump pillow from 12.1.1 to 12.2.0 in /backend

[dependabot]

Bumps pillow from 12.1.1 to 12.2.0.

Release notes

Sourced from pillow's releases.

12.2.0

https://pillow.readthedocs.io/en/stable/releasenotes/12.2.0.html

Documentation

• Update 12.2.0 release notes #9522 [@​hugovk]
• Add loader plugins: AMOS abk, Atari Degas, 40+ more obscure formats via Netpbm #9482 [@​bitplane]
• Update Python versions #9515 [@​radarhere]
• Jeffrey A. Clark -> Jeffrey 'Alex' Clark #9513 [@​aclark4life]
• Add release notes for #9394, #9419 and #9456 #9467 [@​radarhere]
• Add Amiga Workbench .info loader to 3rd party plugins list #9459 [@​bitplane]
• Merge PFM documentation into PPM #9434 [@​radarhere]
• Update macOS tested Pillow versions #9431 [@​radarhere]
• Fix CVE number #9430 [@​hugovk]

Dependencies

• Update xz to 5.8.3 #9523 [@​radarhere]
• Update libjpeg-turbo to 3.1.4.1 #9507 [@​radarhere]
• Update libpng to 1.6.56 #9499 [@​radarhere]
• Update freetype to 2.14.3 #9485 [@​radarhere]
• Updated libavif to 1.4.1 #9479 [@​radarhere]
• Updated harfbuzz to 13.2.1 #9461 [@​radarhere]
• Update Ghostscript to 10.7.0 #9469 [@​radarhere]
• Update harfbuzz to 13.0.1 #9453 [@​radarhere]
• Update libavif to 1.4.0 #9460 [@​radarhere]
• Update freetype to 2.14.2 #9449 [@​radarhere]
• Update actions/download-artifact action to v8 #9451 [@renovate[bot]]
• Updated libpng to 1.6.55 #9425 [@​radarhere]

Testing

• Cleanup .spider extension in the same test where it is added #9517 [@​radarhere]
• Run tests in parallel via tox for 3.5x speedup #9516 [@​hugovk]
• Enable colour in CI logs #9486 [@​hugovk]
• Update Ghostscript to 10.7.0 #9469 [@​radarhere]
• Simplify TGA test code #9477 [@​radarhere]
• Update tests to check for ValueError when encoding an empty image #9464 [@​radarhere]
• Upgrade CI from macos-15-intel to macos-26-intel #9454 [@​hugovk]
• Add check-case-conflict hook #9446 [@​radarhere]
• Specify platform when pulling docker image #9440 [@​radarhere]
• GHA: Cache libavif and webp builds for Ubuntu #9437 [@​hugovk]
• Update macOS tested Pillow versions #9431 [@​radarhere]

Other changes

• Check calloc return value #9527 [@​radarhere]
• Check all allocs in the Arrow tree #9488 [@​wiredfool]
• Reject non-numeric elements inside list coords #9526 [@​hugovk]
• Move variable declaration inside define #9525 [@​radarhere]

... (truncated)

Commits

• 3c41c09 12.2.0 version bump
• cdaa29e Check calloc return value (#9527)
• 585b2f5 Check calloc return value
• ecf011e Check all allocs in the Arrow tree (#9488)
• cf6de8c Reject non-numeric elements inside list coords (#9526)
• ffdcede Update 12.2.0 release notes (#9522)
• 7929d77 Added security release notes (#149)
• c4f7aa5 Added security release notes
• 22cdb5f Move variable declaration inside define (#9525)
• fc15b3b Resize tall images vertically first (#9524)
• Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[dependabot]

Labels

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Please fix the above issues or remove invalid values from dependabot.yml.

[coderanik]

Superseded by PR #38, which includes Pillow 12.2.0 and passed the full backend security audit and test suite.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.