Remove support of Symfony 4.4

[franmomu]

Let's only support maintained versions, after this we can try to add support for Symfony 7

PS: We could also maybe drop support of PHP < 8.2 based on https://packagist.org/packages/nelmio/security-bundle/php-stats#3.0

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Codecov Report

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

Project coverage is 96.94%. Comparing base (80a559f) to head (aa1d0d7). Report is 46 commits behind head on master.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #326 +/- ## ========================================= Coverage 96.93% 96.94% + Complexity 433 429 -4 ========================================= Files 55 52 -3 Lines 1959 1930 -29 ========================================= - Hits 1899 1871 -28 + Misses 60 59 -1 ```

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