Bump tensorflow-gpu from 1.10.1 to 2.9.3

Bumps [tensorflow-gpu](https://github.com/tensorflow/tensorflow) from 1.10.1 to 2.9.3.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](https://github.com/tensorflow/tensorflow/compare/v1.10.1...v2.9.3)

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

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requirements.txt

@@ -41,7 +41,7 @@ scipy==1.1.0
 six==1.11.0
 sklearn==0.0
 tensorboard==1.10.0
-tensorflow-gpu==1.10.1
+tensorflow-gpu==2.9.3
 termcolor==1.1.0
 toolz==0.9.0
 torch==0.4.1