2.4 release note (#598) (#599)

Signed-off-by: bowenlan-amzn <[email protected]>

Co-authored-by: bowenlan-amzn <[email protected]>

release-notes/opensearch-index-management.release-notes-2.4.0.0.md

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+## Version 2.4.0.0 2022-11-04
+
+Compatible with OpenSearch 2.4.0
+
+### Enhancements
+* Feature/184 introduce security tests ([#474](https://github.com/opensearch-project/index-management/pull/474))
+* alias in rollup target_index field ([#445](https://github.com/opensearch-project/index-management/pull/445))
+* Adds an alias action ([#575](https://github.com/opensearch-project/index-management/pull/575))
+* Error prevention / Action validation stage 1 ([#579](https://github.com/opensearch-project/index-management/pull/579))
+
+### Bug Fixes
+* Added rounding when using aggregate script for avg metric. ([#490](https://github.com/opensearch-project/index-management/pull/490))
+* Adds plugin version sweep background job ([#434](https://github.com/opensearch-project/index-management/pull/434))
+* Moved _doc_count from transform._doc_count to root of document ([#558](https://github.com/opensearch-project/index-management/pull/558))
+* Bugfix/538 Adding timeout and retry to Transform '_search' API calls ([#576](https://github.com/opensearch-project/index-management/pull/576))
+
+### Infrastructure
+* add group = org.opensearch.plugin ([#571](https://github.com/opensearch-project/index-management/pull/571))
+
+### Maintenance
+* Fix kotlin warnings ([#551](https://github.com/opensearch-project/index-management/pull/551))
+* Update jackson to 2.13.4 ([#557](https://github.com/opensearch-project/index-management/pull/557))
+* Increment version to 2.4.0-SNAPSHOT ([#573](https://github.com/opensearch-project/index-management/pull/573))
+* Fix the compatibility issue of awareness replica validation ([#595](https://github.com/opensearch-project/index-management/pull/595))
+
+### Documentation
+* 2.4 release note ([#598](https://github.com/opensearch-project/index-management/pull/598))