Bump tensorflow from 2.4.1 to 2.9.3

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.4.1 to 2.9.3.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorflow@v2.4.1...v2.9.3)

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

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Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ numpy>=1.10
 scipy>=0.19
 matplotlib>=2.0
 seaborn==0.9.0
-tensorflow==2.4.1
+tensorflow==2.9.3
 pandas==0.25.3
 streamlit
 xlrd==1.2.0

setup.py

@@ -27,7 +27,7 @@
             'pandas>=0.25.3',
             'xlrd==1.2.0',
             'seaborn==0.9.0',
-            'tensorflow==2.4.1',
+            'tensorflow==2.9.3',
             'keras==2.4.3',
             'openpyxl'
         ],