Increase timeout in indexRandom to 30ses (elastic#127385)

This is a backport of
[116126](elastic#116126) [
[122598](elastic#122598) ]

closes [126753](elastic#126753)

Author: drempapis

muted-tests.yml

@@ -169,8 +169,6 @@ tests:
 - class: org.elasticsearch.xpack.test.rest.XPackRestIT
   method: test {p0=ml/3rd_party_deployment/Test start deployment fails while model download in progress}
   issue: https://github.com/elastic/elasticsearch/issues/120810
-- class: org.elasticsearch.indices.mapping.UpdateMappingIntegrationIT
-  issue: https://github.com/elastic/elasticsearch/issues/116126
 - class: org.elasticsearch.xpack.security.authc.service.ServiceAccountIT
   method: testAuthenticateShouldNotFallThroughInCaseOfFailure
   issue: https://github.com/elastic/elasticsearch/issues/120902

test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java

@@ -1801,7 +1801,7 @@ public void indexRandom(boolean forceRefresh, boolean dummyDocuments, boolean ma
             }
         }
         for (CountDownLatch operation : inFlightAsyncOperations) {
-            safeAwait(operation);
+            safeAwait(operation, TEST_REQUEST_TIMEOUT);
         }
         if (bogusIds.isEmpty() == false) {
             // delete the bogus types again - it might trigger merges or at least holes in the segments and enforces deleted docs!