Bump keras from 2.4.3 to 2.13.1

Bumps [keras](https://github.com/keras-team/keras) from 2.4.3 to 2.13.1.
- [Release notes](https://github.com/keras-team/keras/releases)
- [Commits](https://github.com/keras-team/keras/commits/v2.13.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -35,7 +35,7 @@ importlib-metadata==3.3.0
 iniconfig==1.1.1
 ipaddr==2.2.0
 joblib==1.2.0
-Keras==2.4.3
+Keras==2.13.1
 Keras-Preprocessing==1.1.2
 kiwisolver==1.3.1
 lockfile==0.12.2