Add php 8.3 into gh action matrix

Author: vigneshgurusamy

.github/workflows/tests.yml

@@ -9,14 +9,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        php: [8.2]
+        php: [8.2, 8.3]
         dependency-version: [prefer-stable]
 
     name: P${{ matrix.php }} - ${{ matrix.dependency-version }} - ${{ matrix.os }}
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2