Muted test

See #48519

libs/grok/src/test/java/org/elasticsearch/grok/MatcherWatchdogTests.java

@@ -39,6 +39,7 @@ import static org.mockito.Mockito.verifyZeroInteractions;
 
 public class MatcherWatchdogTests extends ESTestCase {
 
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/48519")
     public void testInterrupt() throws Exception {
         AtomicBoolean run = new AtomicBoolean(true); // to avoid a lingering thread when test has completed
         MatcherWatchdog watchdog = MatcherWatchdog.newInstance(10, 100, System::currentTimeMillis, (delay, command) -> {