add github tests for codestyles

Author: Sysix

.github/workflows/codestyle.yml

@@ -0,0 +1,21 @@
+name: Run PHP-CS-Fixer
+
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      
+      - uses: actions/cache@v3
+        with:
+          path: .php-cs-fixer.cache
+          key: ${{ runner.OS }}-${{ github.repository }}-phpcsfixer-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.OS }}-${{ github.repository }}-phpcsfixer-
+      
+      - uses: docker://oskarstark/php-cs-fixer-ga
+
+  

.github/workflows/phpstan.yml

@@ -1,4 +1,4 @@
-name: Run Shepherd
+name: Run PHPStan
 
 on: [pull_request]