pip(deps): update ax-platform requirement from ~=0.2.2 to ~=0.2.3

Updates the requirements on [ax-platform](https://github.com/facebook/Ax) to permit the latest version.
- [Release notes](https://github.com/facebook/Ax/releases)
- [Changelog](https://github.com/facebook/Ax/blob/main/CHANGELOG.md)
- [Commits](facebook/Ax@0.2.2...0.2.3)

---
updated-dependencies:
- dependency-name: ax-platform
  dependency-type: direct:production
...

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

requirements/TUNE_REQUIREMENTS.txt

@@ -1,4 +1,4 @@
 mypy_extensions~=0.4; python_version < '3.8'
 optuna~=2.10
 torch>=1.8.1
-ax-platform~=0.2.2; python_version >= '3.7'
+ax-platform~=0.2.3; python_version >= '3.7'