Update GitHub actions

Author: trowski

.github/workflows/ci.yml

@@ -23,6 +23,11 @@ jobs:
             static-analysis: none
             style-fix: none
 
+          - operating-system: 'ubuntu-latest'
+            php-version: '8.5'
+            static-analysis: none
+            style-fix: none
+
           - operating-system: 'windows-latest'
             php-version: '8.3'
             job-description: 'on Windows'
@@ -42,7 +47,7 @@ jobs:
           git config --global core.eol lf
 
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -54,7 +59,7 @@ jobs:
         run: echo "::set-output name=dir::$(composer config cache-dir)"
 
       - name: Cache dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v5
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: composer-${{ runner.os }}-${{ matrix.php-version }}-${{ hashFiles('**/composer.*') }}-${{ matrix.composer-flags }}