Bump python-dotenv from 0.10.2 to 1.2.2 in /document-manager/backend

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 0.10.2 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@v0.10.2...v1.2.2)

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

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Author: dependabot[bot]

document-manager/backend/requirements.txt

@@ -22,7 +22,7 @@ py-healthcheck==1.10.1
 pytest==4.5.0
 pytest-cov==2.7.1
 python-dateutil==2.8.0
-python-dotenv==0.10.2
+python-dotenv==1.2.2
 python-magic==0.4.18
 redis==3.2.1
 requests==2.32.0