Bump social-auth-app-django from 5.5.1 to 5.6.0 (#13388)

Bumps [social-auth-app-django](https://github.com/python-social-auth/social-app-django) from 5.5.1 to 5.6.0.
- [Release notes](https://github.com/python-social-auth/social-app-django/releases)
- [Changelog](https://github.com/python-social-auth/social-app-django/blob/master/CHANGELOG.md)
- [Commits](python-social-auth/social-app-django@5.5.1...5.6.0)

---
updated-dependencies:
- dependency-name: social-auth-app-django
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -39,7 +39,7 @@ uWSGI==2.0.30
 vobject==0.9.9
 whitenoise==5.2.0
 titlecase==2.4.1
-social-auth-app-django==5.5.1
+social-auth-app-django==5.6.0
 social-auth-core==4.8.1
 gitpython==3.1.45
 python-gitlab==6.4.0