ClientAuthProxyTest.testClientAuthProxyingWithMultipleServerSubDomains is failing on osx

[olamy]

with jetty-12.0.x (not sure yet about other branches)

[ERROR] Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 13.26 s <<< FAILURE! - in org.eclipse.jetty.ee9.proxy.ClientAuthProxyTest
[ERROR] org.eclipse.jetty.ee9.proxy.ClientAuthProxyTest.testClientAuthProxyingWithMultipleServerSubDomains  Time elapsed: 6.67 s  <<< ERROR!
java.util.concurrent.TimeoutException: Total timeout 5000 ms elapsed
	at [email protected]/org.eclipse.jetty.client.HttpConnection$RequestTimeouts.onExpired(HttpConnection.java:330)
	at [email protected]/org.eclipse.jetty.client.HttpConnection$RequestTimeouts.onExpired(HttpConnection.java:310)
	at [email protected]/org.eclipse.jetty.io.CyclicTimeouts.onTimeoutExpired(CyclicTimeouts.java:105)
	at [email protected]/org.eclipse.jetty.io.CyclicTimeouts$Timeouts.onTimeoutExpired(CyclicTimeouts.java:191)
	at [email protected]/org.eclipse.jetty.io.CyclicTimeout$Wakeup.run(CyclicTimeout.java:293)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)