Bump python-dotenv from 0.10.3 to 0.20.0 (#128)

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 0.10.3 to 0.20.0.
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/master/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v0.10.3...v0.20.0)

---
updated-dependencies:
- dependency-name: python-dotenv
  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>

requirements.txt

@@ -5,7 +5,7 @@ django-health-check==3.12.1
 django-decorator-include
 pytest-mock
 pytest-django==4.5.2
-python-dotenv==0.10.3
+python-dotenv==0.20.0
 gunicorn==20.1.0
 psycopg2-binary==2.8.2
 social-auth-app-django