Bump tensorflow from 2.5.2 to 2.5.3

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.5.2 to 2.5.3.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorflow@v2.5.2...v2.5.3)

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

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

Author: dependabot[bot]

docker_requirements.txt

@@ -23,7 +23,7 @@ fairseq==0.10.2
 pyicu==2.8
 deepcut==0.7.0.0
 h5py==3.1.0
-tensorflow==2.5.2
+tensorflow==2.5.3
 pandas==0.24
 tltk==1.3.8
 OSKut==1.3