Bump tensorflow from 2.11.0 to 2.12.1

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.11.0 to 2.12.1.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorflow@v2.11.0...v2.12.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -77,7 +77,7 @@ slicer==0.0.7
 tensorboard==2.11.2
 tensorboard-data-server==0.6.1
 tensorboard-plugin-wit==1.8.1
-tensorflow==2.11.0
+tensorflow==2.12.1
 tensorflow-estimator==2.11.0
 tensorflow-io-gcs-filesystem==0.31.0
 termcolor==2.2.0