Bump keras in /Prediction Models/Thyroid Cancer Recurrence Prediction

Bumps [keras](https://github.com/keras-team/keras) from 3.3.3 to 3.9.0.
- [Release notes](https://github.com/keras-team/keras/releases)
- [Commits](keras-team/keras@v3.3.3...v3.9.0)

---
updated-dependencies:
- dependency-name: keras
  dependency-version: 3.9.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Prediction Models/Thyroid Cancer Recurrence Prediction/requirements.txt

@@ -6,7 +6,7 @@ autogluon.multimodal==1.1.0
 autogluon.tabular==1.1.0
 autogluon.timeseries==1.1.0
 gluonts==0.14.3
-keras==3.3.3
+keras==3.9.0
 matplotlib==3.8.4
 numpy==1.26.4
 pandas==2.2.2