Increase time in IntervalThrottlerTests (#120344)

We suspect that something in the test environment is causing more than
10ms to pass between some of the calls so increasing to 100 for now to
verify

Closes #120023

muted-tests.yml

@@ -220,9 +220,6 @@ tests:
 - class: org.elasticsearch.xpack.test.rest.XPackRestIT
   method: test {p0=transform/transforms_unattended/Test unattended put and start}
   issue: https://github.com/elastic/elasticsearch/issues/120019
-- class: org.elasticsearch.index.mapper.IntervalThrottlerTests
-  method: testThrottling
-  issue: https://github.com/elastic/elasticsearch/issues/120023
 - class: org.elasticsearch.xpack.ilm.actions.SearchableSnapshotActionIT
   method: testUpdatePolicyToAddPhasesYieldsInvalidActionsToBeSkipped
   issue: https://github.com/elastic/elasticsearch/issues/118406

server/src/test/java/org/elasticsearch/index/mapper/IntervalThrottlerTests.java

@@ -14,12 +14,12 @@
 public class IntervalThrottlerTests extends ESTestCase {
 
     public void testThrottling() throws Exception {
-        var throttler = new IntervalThrottler.Acceptor(10);
+        var throttler = new IntervalThrottler.Acceptor(100);
         assertTrue(throttler.accept());
         assertFalse(throttler.accept());
         assertFalse(throttler.accept());
 
-        Thread.sleep(20);
+        Thread.sleep(110);
         assertTrue(throttler.accept());
         assertFalse(throttler.accept());
         assertFalse(throttler.accept());