Update beste/clock requirement in the development-dependencies group

Updates the requirements on [beste/clock](https://github.com/beste/clock) to permit the latest version.

Updates `beste/clock` to 4.0.0
- [Release notes](https://github.com/beste/clock/releases)
- [Changelog](https://github.com/beste/clock/blob/4.x/CHANGELOG.md)
- [Commits](beste/clock@3.0.0...4.0.0)

---
updated-dependencies:
- dependency-name: beste/clock
  dependency-version: 4.0.0
  dependency-type: direct:development
  dependency-group: development-dependencies
...

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

Author: dependabot[bot]

composer.json

@@ -45,7 +45,7 @@
         "symfony/http-foundation": "~7.4"
     },
     "require-dev": {
-        "beste/clock": "~3.0",
+        "beste/clock": "~4.0",
         "mockery/mockery": "~1.6",
         "simplesamlphp/simplesamlphp-test-framework": "~1.11"
     },