Bump phpunit/phpunit from 9.5.21 to 10.4.1

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.5.21 to 10.4.1.
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/10.4.1/ChangeLog-10.4.md)
- [Commits](sebastianbergmann/phpunit@9.5.21...10.4.1)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

composer.json

@@ -15,7 +15,7 @@
 		"ext-json": "*"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "^9.5",
+		"phpunit/phpunit": "^10.4",
 		"mikey179/vfsstream": "^1.6"
 	}
 }