feat: Release 3.2.7

[fsbraun]

• Bumps version
• Changelog update
• Drop Django 4.1 test against Django 4.2, add Django 5.0 tests with django CMS 4
• Update test requirements

[codecov[bot]]

Codecov Report

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

Comparison is base (7ee48a8) 100.00% compared to head (3af2b21) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #504 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 2 2 Lines 33 33 Branches 3 3 ========================================= Hits 33 33 ```

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