Increase timeouts in ZipkinWebClientSenderTests

This is an attempt to stabilize the tests. They are currently flaky
due to a timeout that appears to occur because the mock web server isn't
responding quickly enough. A larger timeout will either confirm this if
the tests stabilize or indicate that the problem has a different cause
if they do not stabilize.

Closes gh-42375

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/tracing/zipkin/ZipkinHttpSenderTests.java

@@ -91,7 +91,7 @@ public void onError(Throwable t) {
 				callbackResult.set(new CallbackResult(false, t));
 			}
 		});
-		return Awaitility.await().atMost(Duration.ofSeconds(5)).until(callbackResult::get, Objects::nonNull);
+		return Awaitility.await().atMost(Duration.ofMinutes(1)).until(callbackResult::get, Objects::nonNull);
 	}
 
 	protected void makeSyncRequest(List<byte[]> encodedSpans) throws IOException {

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/tracing/zipkin/ZipkinWebClientSenderTests.java

@@ -80,7 +80,7 @@ void beforeEach() {
 
 	@Override
 	Sender createSender() {
-		return createSender(Duration.ofSeconds(10));
+		return createSender(Duration.ofMinutes(1));
 	}
 
 	Sender createSender(Duration timeout) {