Bump python-dotenv from 1.1.1 to 1.2.2 in /.github

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 1.1.1 to 1.2.2.
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.1.1...v1.2.2)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.github/requirements.txt

@@ -4,7 +4,7 @@ azure-cosmos==4.15.0
 azure-monitor-opentelemetry==1.8.7
 azure-monitor-events-extension==0.1.0
 azure-identity==1.25.3
-python-dotenv==1.1.1
+python-dotenv==1.2.2
 python-multipart==0.0.30
 opentelemetry-api==1.40.0
 opentelemetry-sdk==1.40.0