PR Fixes - Add streams module to multi project YAML test suite

Author: lukewhiting

x-pack/qa/multi-project/core-rest-tests-with-multiple-projects/src/yamlRestTest/java/org/elasticsearch/multiproject/test/CoreWithMultipleProjectsClientYamlTestSuiteIT.java

@@ -37,6 +37,7 @@ public class CoreWithMultipleProjectsClientYamlTestSuiteIT extends MultipleProje
         .module("test-multi-project")
         .module("lang-mustache")
         .module("parent-join")
+        .module("streams")
         .setting("test.multi_project.enabled", "true")
         .setting("xpack.security.enabled", "true")
         .setting("xpack.watcher.enabled", "false")