Increase wait timeout in the JdbcLockLeaderTests

Looks like latest upgrades for the CI server made virtual machines a bit
slower (less resources are allocated), so we don't have a reasonable
time for switching between threads.

Author: artembilan

spring-integration-jdbc/src/test/java/org/springframework/integration/jdbc/leader/JdbcLockRegistryLeaderInitiatorTests.java

@@ -184,15 +184,15 @@ public void testLostConnection() throws InterruptedException {
 
 		destroy();
 
-		assertThat(countingPublisher.revoked.await(20, TimeUnit.SECONDS)).isTrue();
+		assertThat(countingPublisher.revoked.await(60, TimeUnit.SECONDS)).isTrue();
 
 		granted = new CountDownLatch(1);
 		countingPublisher = new CountingPublisher(granted);
 		initiator.setLeaderEventPublisher(countingPublisher);
 
 		init();
 
-		assertThat(granted.await(10, TimeUnit.SECONDS)).isTrue();
+		assertThat(granted.await(60, TimeUnit.SECONDS)).isTrue();
 
 		initiator.stop();
 	}