Update workflow versions

Author: akrabat

.github/workflows/tests.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up PHP ${{ matrix.php }}
         uses: shivammathur/setup-php@v2
@@ -27,7 +27,7 @@ jobs:
           coverage: xdebug
 
       - name: Install dependencies with Composer
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@v2
 
       - name: Coding standards
         if: matrix.analysis