Merge pull request #54 from renoki-co/dependabot/composer/phpunit/phpunit-tw-9.5.21

Update phpunit/phpunit requirement from ^9.5.20 to ^9.5.21

Author: rennokki

composer.json

@@ -39,7 +39,7 @@
  "mockery/mockery": "^1.5",
  "orchestra/testbench": "^6.28|^7.0",
  "orchestra/testbench-core": "^6.28|^7.0",
- "phpunit/phpunit": "^9.5.20"
+ "phpunit/phpunit": "^9.5.21"
  },
  "config": {
  "sort-packages": true