Add phpstan

.github/workflows/phpstan.yml

@@ -0,0 +1,27 @@
+name: PHP Unit
+on: [ pull_request ]
+jobs:
+  phpunit:
+    name: PHPStan
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0 # important!
+      - name: setup php
+        run: |
+          git submodule init
+          git submodule update --remote --merge
+      - name: Install dependencies
+        run: |
+          sudo apt update && sudo apt remove mysql* -y
+          touch storage/logs/laravel.log
+          touch storage/logs/crontab.log
+          touch storage/logs/horizon.log
+          touch database/database.sqlite
+          cp .env.ci .env
+          ./bin/sail up -d
+      - name: tear down containers
+        run: |
+          ./bin/sail bin phpstan analyse --error-format=github
+