[CI] MasterDisruptionIT.testFailWithMinimumMasterNodesConfigured

[costin]

Not sure if the Lucene upgrade affected the test suite but there are two failures in
MasterDisruptionIT.testFailWithMinimumMasterNodesConfigured which looks important enough to not mute it as it deserves immediate attention.

Expected: "node_t2"
     but: was "node_t1"
	at __randomizedtesting.SeedInfo.seed([4E701D1D163A434D:1CB79551CE20161A]:0)
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
	at org.junit.Assert.assertThat(Assert.java:956)
	at org.elasticsearch.discovery.AbstractDisruptionTestCase.lambda$assertMaster$2(AbstractDisruptionTestCase.java:202)

See
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+intake/1420/console
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+multijob-unix-compatibility/os=debian/197/console

[elasticmachine]

Pinging @elastic/es-distributed

[costin]

Another failure at https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+intake/1429/console