workflows: Add PHPStan level 3 static analysis CI

Author: AniLeo

public_html/.github/workflows/master.yml

@@ -0,0 +1,35 @@
+# This is a basic workflow to help you get started with Actions
+name: CI
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+
+      # Run PHPStan level 3 analysis
+      - name: PHPStan Static Analysis
+        uses: php-actions/phpstan@v3
+        with:
+          version: latest
+          php-version: latest
+          path: .
+          level: 3
+          memory_limit: 256M