Revert "chore(deps): update phpstan packages to v2 (major)" (#1633)

Author: simPod

composer.json

@@ -24,8 +24,8 @@
     "phpbench/phpbench": "^1.2",
     "phpstan/extension-installer": "^1.1",
     "phpstan/phpstan": "2.0.0",
-    "phpstan/phpstan-phpunit": "2.0.0",
-    "phpstan/phpstan-strict-rules": "2.0.0",
+    "phpstan/phpstan-phpunit": "1.4.0",
+    "phpstan/phpstan-strict-rules": "1.6.1",
     "phpunit/phpunit": "^9.5 || ^10.5.21 || ^11",
     "psr/http-message": "^1 || ^2",
     "react/http": "^1.6",