Create Testcoverage and upgrade Symfomy and PHP

* Some tests

* More tests!

* Tests 3

* Move getScores from Candidate to Quiz

* Add some suggestions for future refactoring

* - **Add Gedmo doctrine-extensions and Stof bundle integration**
  - Added `stof/doctrine-extensions-bundle` and `gedmo/doctrine-extensions` dependencies.
  - Integrated `Timestampable` behavior for `Created` fields in entities.
  - Updated `bundles.php` to register StofDoctrineExtensionsBundle.
  - Added configuration for the Stof bundle.
  - Simplified `SeasonVoter` with `match` expression and added new tests.
  - Minor fixes and adjustments across various files.

* WIP

* All the tests

* Base64 tests

* Symfomny 7.4.0

* Update

* Update recipe

* PHP 8.5

* Rector changes

* More 8.5

* Things

src/Entity/Season.php

@@ -98,7 +98,7 @@ class Season
         return $this->owners->contains($user);
     }
 
-    public function generateSeasonCode(): self
+    public function generateSeasonCode(): void
     {
         $code = '';
         $len = mb_strlen(self::SEASON_CODE_CHARACTERS) - 1;
@@ -108,7 +108,5 @@ class Season
         }
 
         $this->seasonCode = $code;
-
-        return $this;
     }
 }