[TASK] Drop the workaround for composer install on PHP 8.2

* [TASK] Drop the workaround for `composer install` on PHP 8.2

* Revert added cgl step

---------

Co-authored-by: Oliver Klee <typo3-coding@oliverklee.de>

.github/workflows/tests.yml

@@ -30,14 +30,8 @@ jobs:
           restore-keys: ${{ runner.os }}-php-${{ matrix.php }}-composer-
 
       - name: Install dependencies
-        if: ${{ matrix.php <= '8.1' }}
         run: composer install --prefer-dist --no-progress --no-suggest --optimize-autoloader
 
-      - name: Install dependencies PHP 8.2
-        # @todo: Needed until prophecy (req by phpunit) allows PHP 8.2, https://github.com/phpspec/prophecy/issues/556
-        if: ${{ matrix.php > '8.1' }}
-        run: composer install --prefer-dist --no-progress --no-suggest --optimize-autoloader --ignore-platform-req=php+
-
       - name: Run unit tests
         run: composer tests:unit