Add debug logging to flaky apache async client tests

[laurit]

Resolves #13453
https://scans.gradle.com/s/73ye46a66fxfy/tests/task/:instrumentation:apache-httpclient:apache-httpclient-5.0:javaagent:test/details/io.opentelemetry.javaagent.instrumentation.apachehttpclient.v5_0.ApacheHttpAsyncClientTest$ApacheClientUriRequestTest?top-execution=1

The cause of the failure seems to be

2025-03-05T03:54:18.4862538Z     org.apache.hc.core5.reactor.IOReactorShutdownException: I/O reactor has been shut down
2025-03-05T03:54:18.4863513Z     	at org.apache.hc.core5.reactor.IOWorkers.validate(IOWorkers.java:51)
2025-03-05T03:54:18.4864287Z     	at org.apache.hc.core5.reactor.IOWorkers.access$000(IOWorkers.java:31)
2025-03-05T03:54:18.4865671Z     	at org.apache.hc.core5.reactor.IOWorkers$PowerOfTwoSelector.next(IOWorkers.java:67)
2025-03-05T03:54:18.4866916Z     	at org.apache.hc.core5.reactor.AbstractIOReactorBase.connect(AbstractIOReactorBase.java:53)
2025-03-05T03:54:18.4868342Z     	at org.apache.hc.client5.http.impl.nio.MultihomeIOSessionRequester$1.executeNext(MultihomeIOSessionRequester.java:105)
2025-03-05T03:54:18.4869926Z     	at org.apache.hc.client5.http.impl.nio.MultihomeIOSessionRequester$1$1.failed(MultihomeIOSessionRequester.java:141)
2025-03-05T03:54:18.4871268Z     	at org.apache.hc.core5.concurrent.BasicFuture.failed(BasicFuture.java:138)
2025-03-05T03:54:18.4872208Z     	at org.apache.hc.core5.reactor.IOSessionRequest.failed(IOSessionRequest.java:78)
2025-03-05T03:54:18.4873330Z     	at org.apache.hc.core5.reactor.InternalConnectChannel.onException(InternalConnectChannel.java:99)
2025-03-05T03:54:18.4874474Z     	at org.apache.hc.core5.reactor.InternalChannel.handleIOEvent(InternalChannel.java:55)
2025-03-05T03:54:18.4875812Z     	at org.apache.hc.core5.reactor.SingleCoreIOReactor.processEvents(SingleCoreIOReactor.java:179)
2025-03-05T03:54:18.4877245Z     	at org.apache.hc.core5.reactor.SingleCoreIOReactor.doExecute(SingleCoreIOReactor.java:128)
2025-03-05T03:54:18.4878894Z     	at org.apache.hc.core5.reactor.AbstractSingleCoreIOReactor.execute(AbstractSingleCoreIOReactor.java:82)
2025-03-05T03:54:18.4880476Z     	at org.apache.hc.core5.reactor.IOReactorWorker.run(IOReactorWorker.java:44)
2025-03-05T03:54:18.4881664Z     	at java.base/java.lang.Thread.run(Thread.java:829)

we need to figure out what shuts it down. Probably has something to do with connectionErrorUnopenedPort test.