Bump keras from 3.11.0 to 3.11.3

Bumps [keras](https://github.com/keras-team/keras) from 3.11.0 to 3.11.3.
- [Release notes](https://github.com/keras-team/keras/releases)
- [Commits](keras-team/keras@v3.11.0...v3.11.3)

---
updated-dependencies:
- dependency-name: keras
  dependency-version: 3.11.3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]