Github actions: Add PHP 8.2

Author: Naktibalda

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [8.0, 8.1]
+        php: [8.0, 8.1, 8.2]
 
     steps:
     - name: Checkout code
@@ -30,4 +30,4 @@ jobs:
       run: phpcs src/
 
     - name: Static analysis
-      run: phpstan analyze --level=8 src/
+      run: phpstan analyze --level=9 src/