Disable frequently failing test in clustering.web

Tests that fails frequently:

• ConcurrentFineWebFailoverTestCase - https://ci.wildfly.org/project.html?projectId=WF_PullRequest&buildTypeId=&tab=testDetails&testNameId=2466681039856010796&order=TEST_STATUS_DESC&branch_WF_PullRequest=__all_branches__&itemsCount=50
• ReplicationForNegotiationAuthenticatorTestCase - https://ci.wildfly.org/project.html?projectId=WF_PullRequest&testNameId=-5828775139893217285&tab=testDetails
• CoarseWebFailoverTestCase - https://ci.wildfly.org/project.html?projectId=WF_PullRequest&testNameId=6517845608855553882&tab=testDetails

This issue is distinct from WFLY-10026 as failures also occurs on Linux.