Bump python-dotenv from 1.0.1 to 1.1.1 (#2588)

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 1.0.1 to 1.1.1.
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.0.1...v1.1.1)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

app/backend/requirements.txt

@@ -352,7 +352,7 @@ pymupdf==1.26.0
     # via -r requirements.in
 pypdf==4.3.1
     # via -r requirements.in
-python-dotenv==1.0.1
+python-dotenv==1.1.1
     # via
     #   -r requirements.in
     #   prompty