ci: update cache image

Author: ksassnowski

.github/workflows/run_tests.yml

@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Cache dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.composer/cache/files
           key: dependencies-laravel-${{ matrix.laravel }}-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}