Bump tensorflow (#472)

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.12.0 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@v2.12.0...v2.12.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

mobile/examples/object_detection/ios/ORTObjectDetection/prepare_model.requirements.txt

@@ -1,4 +1,4 @@
 onnx==1.13.1
 onnxruntime==1.14.1
-tensorflow==2.12.0
+tensorflow==2.12.1
 tf2onnx==1.14.0