Mute SSL HTTP connection test

This test is failing for days, possibly due to a change in core
Elasticsearch. This commit marks this test as awaits fix.

Original commit: elastic/x-pack-elasticsearch@8ed3965795

plugin/src/test/java/org/elasticsearch/xpack/security/transport/ssl/SslIntegrationTests.java

@@ -93,6 +93,7 @@ public class SslIntegrationTests extends SecurityIntegTestCase {
         }
     }
 
+    @AwaitsFix(bugUrl = "https://github.com/elastic/x-pack-elasticsearch/issues/3382")
     public void testThatConnectionToHTTPWorks() throws Exception {
         Settings.Builder builder = Settings.builder();
         addSSLSettingsForStore(builder, "/org/elasticsearch/xpack/security/transport/ssl/certs/simple/testclient.jks", "testclient");