Upgraded phpstan

Author: GrahamCampbell

vendor-bin/phpstan/composer.json

@@ -1,8 +1,8 @@
 {
     "require": {
         "php": "^7.2.5 || ^8.0",
-        "phpstan/phpstan": "0.12.60",
-        "phpstan/phpstan-deprecation-rules": "0.12.5",
+        "phpstan/phpstan": "0.12.64",
+        "phpstan/phpstan-deprecation-rules": "0.12.6",
         "phpstan/phpstan-strict-rules": "0.12.5",
         "thecodingmachine/phpstan-strict-rules": "0.12.1",
         "ergebnis/phpstan-rules": "0.15.3"