composer(deps-dev): Bump vimeo/psalm from 5.20.0 to 5.21.0

Bumps [vimeo/psalm](https://github.com/vimeo/psalm) from 5.20.0 to 5.21.0.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Commits](vimeo/psalm@5.20.0...5.21.0)

---
updated-dependencies:
- dependency-name: vimeo/psalm
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -32,7 +32,7 @@
     "infection/infection": "~0.26.6",
     "phpunit/phpunit": "^9.6.16",
     "psalm/plugin-phpunit": "~0.18.4",
-    "vimeo/psalm": "^5.20.0"
+    "vimeo/psalm": "^5.21.0"
   },
   "autoload": {
     "psr-4": {