Added is app and phpstan (#33)

* Added is app and phpstan

* Run phpstan on 8.4

* Add composer lock and update

Author: LauJosefsen

.github/workflows/quality-assurance.yml

@@ -20,3 +20,15 @@ jobs:
           php-version: ${{ matrix.php-version }}
       - run: composer install
       - run: ./vendor/bin/php-cs-fixer fix --dry-run
+  phpstan:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-version: [8.2, 8.3, 8.4]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+      - run: composer install
+      - run: ./vendor/bin/phpstan

.gitignore

@@ -3,4 +3,3 @@
 .php_cs.cache
 .DS_Store
 *.cache
-composer.lock

composer.json

@@ -16,7 +16,9 @@
         "ext-apcu": "*"
     },
     "require-dev": {
-        "cego/php-cs-fixer": "2.0.0"
+        "cego/php-cs-fixer": "2.0.0",
+        "cego/phpstan": "^4",
+        "laravel/framework": "^11.41"
     },
     "autoload": {
         "psr-4": {