Disable two tests for UDP on MacOS

(cherry picked from commit 74abe23)

# Conflicts:
#	spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/DatagramPacketMulticastSendingHandlerTests.java
#	spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/UdpChannelAdapterTests.java

Author: artembilan

spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/DatagramPacketMulticastSendingHandlerTests.java

@@ -29,6 +29,8 @@
 import java.util.concurrent.atomic.AtomicInteger;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledOnOs;
+import org.junit.jupiter.api.condition.OS;
 
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.core.task.SimpleAsyncTaskExecutor;
@@ -47,6 +49,7 @@
  * @since 2.0
  */
 @Multicast
+@DisabledOnOs(value = OS.MAC, disabledReason = "Multicast tests don't work on MacOS")
 public class DatagramPacketMulticastSendingHandlerTests {
 
 	@Test

spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/UdpChannelAdapterTests.java

@@ -31,6 +31,8 @@
 import java.util.concurrent.atomic.AtomicReference;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledOnOs;
+import org.junit.jupiter.api.condition.OS;
 
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -59,6 +61,7 @@
  *
  */
 @Multicast
+@DisabledOnOs(value = OS.MAC, disabledReason = "Multicast tests don't work on MacOS")
 public class UdpChannelAdapterTests {
 
 	@Test