Bump phpstan from 1.x to 2.1+ and remove unnecessary psalm annotations

Author: SerafimArts

composer.json

@@ -26,8 +26,7 @@
         "jetbrains/phpstorm-attributes": "^1.0",
         "justinrainbow/json-schema": "^6.0",
         "monolog/monolog": "^3.7",
-        "phpstan/phpstan": "^2.0",
-        "phpstan/phpstan-deprecation-rules": "^2.0",
+        "phpstan/phpstan": "^2.1",
         "phpstan/phpstan-strict-rules": "^2.0",
         "phpunit/phpunit": "^10.5|^11.0",
         "symfony/cache": "^5.4|^6.0|^7.0",

phpstan.neon

@@ -1,6 +1,5 @@
 includes:
   - phar://phpstan.phar/conf/bleedingEdge.neon
-  - vendor/phpstan/phpstan-deprecation-rules/rules.neon
   - vendor/phpstan/phpstan-strict-rules/rules.neon
 parameters:
   level: max