Bump tensorflow-cpu from 2.8.4 to 2.9.3

Bumps [tensorflow-cpu](https://github.com/tensorflow/tensorflow) from 2.8.4 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@v2.8.4...v2.9.3)

---
updated-dependencies:
- dependency-name: tensorflow-cpu
  dependency-type: indirect
...

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