KeycloakUserServiceTest occasionally failing

[lampajr]

Describe the bug

Test KeycloakUserServiceTest is occasionally failing with:

2024-10-15 13:35:57,816 WARN  [io.hyp.too.hor.svc.use.KeycloakUserBackend] (main) Could not add admin role to user some-random-dude due to User some-random-dude does not exist
Error:  Tests run: 11, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 63.65 s <<< FAILURE! -- in io.hyperfoil.tools.horreum.svc.KeycloakUserServiceTest
Error:  io.hyperfoil.tools.horreum.svc.KeycloakUserServiceTest.apiKeys -- Time elapsed: 0.615 s <<< FAILURE!
org.opentest4j.AssertionFailedError: Expected a notification of key about to expire ==> expected: <false> but was: <true>
	at io.hyperfoil.tools.horreum.svc.UserServiceAbstractTest.lambda$apiKeys$56(UserServiceAbstractTest.java:617)
	at io.hyperfoil.tools.horreum.svc.UserServiceAbstractTest.overrideTestSecurity(UserServiceAbstractTest.java:76)
	at io.hyperfoil.tools.horreum.svc.UserServiceAbstractTest.apiKeys(UserServiceAbstractTest.java:578)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.junit.QuarkusTestExtension.runExtensionMethod(QuarkusTestExtension.java:973)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:823)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

To Reproduce

See job https://github.com/Hyperfoil/Horreum/actions/runs/11347129760/job/31557779361?pr=2085 as example

Additional Context

Re-running the CI makes the test green, thus I think it is actually a flaky test.