dev: replaced PHPStan with Psalm

Author: lapaliv

.github/workflows/phpunit.yml

@@ -72,4 +72,4 @@ jobs:
         run: composer install --prefer-dist --no-progress
 
       - name: Psalm
-        run: ./vendor/bin/psalm --no-progress --no-cache --no-suggestions --report=report.json --memory-limit 512M
+        run: ./vendor/bin/psalm --no-progress --no-cache --no-suggestions --report=report.json --memory-limit=2G