Add PHP 8.3

Author: cmfcmf

.github/workflows/main.yml

@@ -30,9 +30,12 @@ jobs:
         - php-versions: '8.2'
           phpunit-version: '9.5.27'
           experimental: false
+        - php-versions: '8.3'
+          phpunit-version: '9.5.27'
+          experimental: false
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -67,24 +70,25 @@ jobs:
       run: phpunit --coverage-text --coverage-clover=coverage.xml
 
     - name: Upload coverage data to codecov
-      if: matrix.php-versions == '8.1'
-      uses: codecov/codecov-action@v3
+      if: matrix.php-versions == '8.2'
+      uses: codecov/codecov-action@v4
       with:
         files: ./coverage.xml
+        token: ${{ secrets.CODECOV_TOKEN }}
         fail_ci_if_error: true
 
   build-docs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
          # fetch complete history so that the "last updated by" texts can be set correctly
         fetch-depth: 0
-    - name: Use Node.js 18.x
-      uses: actions/setup-node@v1
+    - name: Use Node.js 20.x
+      uses: actions/setup-node@v4
       with:
-        node-version: 18.x
+        node-version: 20.x
     - name: Build Docs
       run: |
         cd docs