Sporadic failing test in aws-resources

[trask]

See https://github.com/open-telemetry/opentelemetry-java-contrib/actions/runs/17108357036/job/48523101473

SimpleHttpClientTest$HttpsServerTest > goodCert() FAILED
    org.opentest4j.AssertionFailedError: 
    expected: "Thanks for trusting me"
     but was: ""
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at io.opentelemetry.contrib.aws.resource.SimpleHttpClientTest$HttpsServerTest.goodCert(SimpleHttpClientTest.java:87)