Updated github checkout and cache to v4

Author: ezimuel

.github/workflows/license.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Check license headers
       run: |

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Use PHP ${{ matrix.php-version }}
       uses: shivammathur/setup-php@v2
@@ -30,7 +30,7 @@ jobs:
       id: composercache
       run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
     - name: Cache dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ${{ steps.composercache.outputs.dir }}
         key: ${{ runner.os }}-php-${{ matrix.php-version }}-${{ hashFiles('**/composer.json') }}