Bump python-dotenv from 1.1.1 to 1.2.1

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] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -75,7 +75,7 @@ optional-dependencies.dev = [
     "pytest==8.4.2",
     "pytest-retry==1.7.0",
     "pytest-xdist==3.8.0",
-    "python-dotenv==1.1.1",
+    "python-dotenv==1.2.1",
     "pyyaml==6.0.3",
     "requests-mock-flask==2025.1.13",
     "ruff==0.14.2",