fix: bump keras from 3.6.0 to 3.7.0

Bumps [keras](https://github.com/keras-team/keras) from 3.6.0 to 3.7.0.
- [Release notes](https://github.com/keras-team/keras/releases)
- [Commits](keras-team/keras@v3.6.0...v3.7.0)

---
updated-dependencies:
- dependency-name: keras
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -17,7 +17,7 @@ scikit-learn==1.5.2
 
 # Machine Learning Libraries:
 tensorflow==2.17.0
-keras==3.6.0
+keras==3.7.0
 
 # Natural Language Processing Libraries:
 nltk==3.9.1