chore(dep): bump pillow to 12.1.1

[Ma77Ball]

What changes were proposed in this PR?

Bumps pillow from 10.2.0 to 10.4.0 in amber/operator-requirements.txt. Pillow 10.2.0 has no pre-built wheel for Python 3.13 and fails to build from source on it. Pillow 10.4.0 was the first release to ship Python 3.13-compatible wheels.

Any related issues, documentation, discussions?

close #4309
related to #4079

How was this PR tested?

• Tested locally by installing amber/operator-requirements.txt in a Python 3.13 conda environment and verifying the dependency resolves and installs without build errors. Then ran Texera locally to check if it runs.

Was this PR authored or co-authored using generative AI tooling?

Generated by: Claude Sonnet 4.6 following The ASF Tooling Guidelines

[Ma77Ball]

@Yicong-Huang, please review. This also appears to be the last package that needs to be bumped. I kept the version at the lowest compatible level, but should I upgrade to the latest? Which is preferred?

[Yicong-Huang]

@Yicong-Huang, please review. This also appears to be the last package that needs to be bumped. I kept the version at the lowest compatible level, but should I upgrade to the latest? Which is preferred?

I would prefer to latest, pillow should be pretty stable. This you have to manually verify with our python native operators which use this library. we don't have test cases for them in CI.

[Ma77Ball]

@Yicong-Huang

1. I ran the operators locally, and they work
2. I updated Pillow to the most recent version (12.1.1)

[chenlica]

@Ma77Ball A minor comment: should we change "bumped pillow" to "bump pillow"?