⬆️ Update python-dotenv requirement from ~=0.21 to ~=1.0

Updates the requirements on [python-dotenv](https://github.com/theskumar/python-dotenv) to permit the latest version.
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v0.21.0...v1.0.0)

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

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

requirements.txt

@@ -11,7 +11,7 @@ flask-smorest~=0.40
 flask-sqlalchemy~=3.0
 gunicorn~=20.1
 marshmallow-sqlalchemy~=0.28
-python-dotenv~=0.21
+python-dotenv~=1.0
 requests~=2.28
 sqlalchemy-utils~=0.40
 urljoin==1.0.0