Add UBI / SR / QI plugin in meta

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: peterzhuamazon

plugins/.gitignore

@@ -23,3 +23,6 @@
 /opensearch-system-templates/
 /opensearch-remote-metadata-sdk/
 /opensearch-learning-to-rank-base/
+/query-insights/
+/user-behavior-insights/
+/search-relevance/

plugins/.meta

@@ -24,6 +24,9 @@
     "sql": "git@github.com:opensearch-project/sql.git",
     "opensearch-system-templates": "git@github.com:opensearch-project/opensearch-system-templates.git",
     "opensearch-remote-metadata-sdk": "git@github.com:opensearch-project/opensearch-remote-metadata-sdk.git",
-    "opensearch-learning-to-rank-base": "git@github.com:opensearch-project/opensearch-learning-to-rank-base.git"
+    "opensearch-learning-to-rank-base": "git@github.com:opensearch-project/opensearch-learning-to-rank-base.git",
+    "query-insights": "git@github.com:opensearch-project/query-insights.git",
+    "user-behavior-insights": "git@github.com:opensearch-project/user-behavior-insights.git",
+    "search-relevance": "git@github.com:opensearch-project/search-relevance.git"
   }
 }