GitHub Actions: Use new PHP workflow

.github/workflows/php.yml

@@ -1,40 +1,13 @@
-name: PHP Tests
+name: CI
 
 on:
   push:
     branches:
       - main
-      - release/*
+      - support/*
   pull_request:
 
 jobs:
-  lint:
-    name: Static analysis for php ${{ matrix.php }} on ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
-        os: ['ubuntu-latest']
-
-    steps:
-      - name: Checkout code base
-        uses: actions/checkout@v4
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php }}
-          tools: phpcs
-
-      - name: Setup dependencies
-        run: composer require -n --no-progress overtrue/phplint
-
-      - name: PHP Lint
-        if: ${{ ! cancelled() }}
-        run: ./vendor/bin/phplint -n --exclude={^vendor/.*} -- .
-
-      - name: PHP CodeSniffer
-        if: ${{ ! cancelled() }}
-        run: phpcs -wps --colors
+  php:
+    name: PHP
+    uses: Icinga/github-actions/.github/workflows/php.yml@main