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/Service/QuizSpreadsheetService.php

@@ -55,6 +55,10 @@ class QuizSpreadsheetService
     /** @throws SpreadsheetDataException */
     public function xlsxToQuiz(Quiz $quiz, File $file): void
     {
+        if (!$this->isSpreadsheetFile($file)) {
+            throw new \InvalidArgumentException('File must be a valid XLSX spreadsheet');
+        }
+
         $spreadsheet = $this->readSheet($file);
         $sheet = $spreadsheet->getSheet($spreadsheet->getFirstSheetIndex());
 
@@ -112,7 +116,10 @@ class QuizSpreadsheetService
         }
     }
 
-    public function quizToXlsx(Quiz $quiz): void {}
+    public function quizToXlsx(Quiz $quiz): void
+    {
+        throw new \Exception('Not implemented');
+    }
 
     private function toXlsx(Spreadsheet $spreadsheet): \Closure
     {
@@ -120,4 +127,9 @@ class QuizSpreadsheetService
 
         return static fn () => $writer->save('php://output');
     }
+
+    private function isSpreadsheetFile(File $file): bool
+    {
+        return 'xlsx' === $file->getExtension();
+    }
 }