chore(deps): bump python-dotenv in /api/terraform/python/layer_openai

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 1.1.1 to 1.2.1.
- [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...v1.2.1)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

api/terraform/python/layer_openai/requirements.txt

@@ -16,5 +16,5 @@ openai==2.0.0
 # --------------------------
 pydantic==2.11.9
 pydantic-settings==2.11.0
-python-dotenv==1.1.1
+python-dotenv==1.2.1
 python-hcl2==7.3.1