The message is in the cause (kroxylicious#3184)

Signed-off-by: Sam Barker <sam@quadrocket.co.uk>

Author: SamBarker

kroxylicious-runtime/src/test/java/io/kroxylicious/proxy/KafkaProxyTest.java

@@ -451,7 +451,7 @@ void shouldFailToStartIfIouUringConfiguredAndUnavailable() throws Exception {
                 """), Features.defaultFeatures())) {
             // When
             // Then
-            assertThatThrownBy(proxy::startup).isInstanceOf(LifecycleException.class).hasMessageStartingWith("io_uring not available due to: ");
+            assertThatThrownBy(proxy::startup).isInstanceOf(LifecycleException.class).cause().hasMessageStartingWith("io_uring not available due to: ");
         }
     }
 }