Bump phpunit/phpunit from 9.5.2 to 9.5.3 (#4)

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.5.2 to 9.5.3.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-9.5.md)
- [Commits](sebastianbergmann/phpunit@9.5.2...9.5.3)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

composer.json

@@ -30,7 +30,7 @@
     },
 
     "require-dev": {
-        "phpunit/phpunit": "^9.3",
+        "phpunit/phpunit": "^9.5",
         "squizlabs/php_codesniffer": "^3.5"
     }
 }