Update cache action to version 4 in run-tests.yml.

Author: murdercode

.github/workflows/run-tests.yml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Cache dependencies
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~/.composer/cache/files
           key: dependencies-php-${{ matrix.php }}-L${{ matrix.laravel }}-composer-${{ hashFiles('composer.json') }}