Bump tensorflow from 2.5.0 to 2.9.3

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.5.0 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@v2.5.0...v2.9.3)

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

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

Author: dependabot[bot]

requirements.txt

@@ -1,6 +1,6 @@
 fire==0.3.1
 black==19.10b0
-tensorflow==2.5.0
+tensorflow==2.9.3
 implicit==0.4.0
 scikit-learn==0.23.1
 jupyter==1.0.0

setup.py

@@ -17,7 +17,7 @@
     author_email="mark@douthwaite.io",
     url="https://github.com/markdouthwaite/xanthus",
     license="MIT",
-    install_requires=["tensorflow==2.5.0", "jupyter==1.0.0", "pandas==1.0.4", "numpy==1.18.5", "h5py==2.10.0", "scipy==1.4.1", "scikit-learn==0.23.1", "requests==2.23.0", "implicit==0.4.0"],
+    install_requires=["tensorflow==2.9.3", "jupyter==1.0.0", "pandas==1.0.4", "numpy==1.18.5", "h5py==2.10.0", "scipy==1.4.1", "scikit-learn==0.23.1", "requests==2.23.0", "implicit==0.4.0"],
     extras_require={"tests": ["pytest", "pandas", "requests", "markdown", "black", "tensorflow"]},
     classifiers=[
         # 'Development Status :: 5 - Production/Stable',