chore(deps): bump python-dotenv in /simulator in the simulator group

Bumps the simulator group in /simulator with 1 update: [python-dotenv](https://github.com/theskumar/python-dotenv).


Updates `python-dotenv` from 1.2.2 to 1.2.3
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.2.2...v1.2.3)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: simulator
...

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

Author: dependabot[bot]

simulator/requirements.txt

@@ -1,2 +1,2 @@
-python-dotenv==1.2.2
+python-dotenv==1.2.3
 requests==2.34.2