Bump tensorflow from 1.13.1 to 2.12.1 in /transporter

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 1.13.1 to 2.12.1.
- [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/v1.13.1...v2.12.1)

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

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

transporter/requirements.txt

@@ -14,7 +14,7 @@ protobuf==3.7.1
 semantic-version==2.6.0
 six==1.12.0
 tensorboard==1.13.1
-tensorflow==1.13.1
+tensorflow==2.12.1
 tensorflow-estimator==1.13.0
 tensorflow-probability==0.6.0
 termcolor==1.1.0