php: Split phpstan tests into a separate workflow

.github/workflows/php.yml

@@ -22,23 +22,16 @@ jobs:
 
     steps:
       - name: Checkout code base
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
           tools: phpcs
-          extensions: ldap
 
       - name: Setup dependencies
-        run: |
-          composer require -n --no-progress overtrue/phplint phpstan/phpstan
-          sudo git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-library.git /usr/share/icinga-php/ipl
-          sudo git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-thirdparty.git /usr/share/icinga-php/vendor
-          sudo git clone --depth 1 https://github.com/Icinga/icingaweb2-module-x509.git /usr/share/icingaweb2-modules/x509
-          sudo git clone --depth 1 https://github.com/Icinga/icingadb-web.git /usr/share/icingaweb2-modules/icingadb
-          sudo git clone --depth 1 https://github.com/Icinga/icingaweb2-module-pdfexport.git /usr/share/icingaweb2-modules/pdfexport
+        run: composer require -n --no-progress overtrue/phplint
 
       - name: PHP Lint
         if: ${{ ! cancelled() }}
@@ -48,10 +41,6 @@ jobs:
         if: ${{ ! cancelled() }}
         run: phpcs
 
-      - name: PHPStan
-        if: ${{ ! cancelled() }}
-        run: ./vendor/bin/phpstan analyse
-
   test:
     name: Unit tests with php ${{ matrix.php }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
@@ -100,7 +89,7 @@ jobs:
 
     steps:
       - name: Checkout code base
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2

.github/workflows/phpstan.yml

@@ -0,0 +1,18 @@
+name: PHPStan
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  phpstan:
+    uses: icinga/github-actions/.github/workflows/phpstan.yml@main
+    with:
+      phpExtensions: ldap
+      dependencies: |
+        {
+          "/usr/share/icingaweb2-modules/x509"      : "https://github.com/Icinga/icingaweb2-module-x509.git",
+          "/usr/share/icingaweb2-modules/icingadb"  : "https://github.com/Icinga/icingadb-web.git",
+          "/usr/share/icingaweb2-modules/pdfexport" : "https://github.com/Icinga/icingaweb2-module-pdfexport.git"
+        }