Bump phpunit/phpunit from 9.5.0 to 9.5.1

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.5.0 to 9.5.1.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-9.5.md)
- [Commits](sebastianbergmann/phpunit@9.5.0...9.5.1)

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

Author: dependabot-preview[bot]

composer.json

@@ -32,7 +32,7 @@
     },
     "require-dev": {
         "ext-phar":                     "*",
-        "phpunit/phpunit":              "^9.4.1",
+        "phpunit/phpunit":              "^9.5.1",
         "squizlabs/php_codesniffer":    "^3.5.5",
         "slevomat/coding-standard":     "^6.3.10",
         "doctrine/coding-standard":     "^8.1.0",