Add release notes for 3.3.1 (opensearch-project#19679) (opensearch-project#19681)

(cherry picked from commit d90ecec)

Signed-off-by: opensearch-ci <opensearch-infra@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: opensearch-trigger-bot[bot]

release-notes/opensearch.release-notes-3.3.1.md

@@ -0,0 +1,8 @@
+## Version 3.3.1 Release Notes
+
+Compatible with OpenSearch and OpenSearch Dashboards version 3.3.1
+
+### Fixed
+* Fix issue with updating core with a patch number other than 0 ([#19377](https://github.com/opensearch-project/OpenSearch/pull/19377))
+* [Star Tree] Fix sub-aggregator casting for search with profile=true ([#19652](https://github.com/opensearch-project/OpenSearch/pull/19652))
+* Fix bwc @timestamp upgrade issue by adding a version check on skip_list param ([#19671](https://github.com/opensearch-project/OpenSearch/pull/19671))