Fix actions/* usage

Author: zonky2

.github/workflows/diagnostics.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Pull source
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup PHP with PECL extension
         uses: shivammathur/setup-php@v2
@@ -29,15 +29,15 @@ jobs:
 
       # setup caches
       - name: Cache composer cache directory
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: composer-cache-dir
         with:
           path: ~/.cache/composer
           key: ${{ runner.os }}-${{ matrix.php }}-build-${{ env.cache-name }}
 
       - name: Cache vendor directory
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: vendor
         with:
@@ -47,7 +47,7 @@ jobs:
             ${{ runner.os }}-${{ matrix.php }}-${{ matrix.contao }}-build-${{ env.cache-name }}-
 
       - name: Cache phpcq directory
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: phpcq
         with:
@@ -69,7 +69,7 @@ jobs:
         run: ./vendor/bin/phpcq run -v ${{ matrix.output }}
 
       - name: Upload build directory to artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: success() || failure()
         with:
           name: phpcq-builds-php-${{ matrix.php }}-${{ matrix.contao }}