Version bump 5.4.1

[nijel]

Proposed changes

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• [x] Release (new release request)
• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Code style update (PEP8, lint, formatting, renaming, etc)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
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• [ ] Other (please describe):

Checklist

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• [ ] Lint and unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added documentation to https://github.com/python-social-auth/social-docs

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.63%. Comparing base (fb93814) to head (243d6f1). Report is 16 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #567 +/- ## ========================================== - Coverage 91.72% 91.63% -0.09% ========================================== Files 39 39 Lines 1172 1172 Branches 144 146 +2 ========================================== - Hits 1075 1074 -1 Misses 72 72 - Partials 25 26 +1 ``` | [Flag](https://app.codecov.io/gh/python-social-auth/social-app-django/pull/567/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=python-social-auth) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/python-social-auth/social-app-django/pull/567/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=python-social-auth) | `91.63% <100.00%> (-0.09%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=python-social-auth#carryforward-flags-in-the-pull-request-comment) to find out more.

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