Update to Psalm 5.4

Author: trowski

composer.json

@@ -18,7 +18,7 @@
         "amphp/php-cs-fixer-config": "^2",
         "amphp/phpunit-util": "^3",
         "phpunit/phpunit": "^9",
-        "psalm/phar": "^4.10"
+        "psalm/phar": "^5.4"
     },
     "autoload": {
         "psr-4": {