Update dependency vimeo/psalm to v6

| datasource | package     | from   | to     |
| ---------- | ----------- | ------ | ------ |
| packagist  | vimeo/psalm | 5.25.0 | 6.11.0 |

Author: renovate[bot]

composer.json

@@ -14,7 +14,7 @@
         "ext-json":                  "*",
         "composer-plugin-api":       "^2.1.0",
         "ocramius/package-versions": "^2.8.0",
-        "vimeo/psalm":               "^5.23.1",
+        "vimeo/psalm":               "^6.11.0",
         "psalm/plugin-phpunit": "^0.19.0"
     },
     "require-dev": {