Merge pull request #20 from InteractionDesignFoundation/renovate/vimeo-psalm-6.x

Update dependency vimeo/psalm to v6

Author: alies-dev

composer.json

@@ -12,7 +12,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.62",
         "phpunit/phpunit": "^10.5 || ^11.3",
-        "vimeo/psalm": "^5.25"
+        "vimeo/psalm": "^6.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,