Add v2.12.0 Release Notes (#971)

Signed-off-by: Rohit Ashiwal <rashiwal@amazon.com>
(cherry picked from commit 290f660)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

release-notes/opensearch-index-management-dashboards-plugin.release-notes-2.12.0.0.md

@@ -0,0 +1,24 @@
+## Version 2.12.0.0 2023-02-07
+
+Compatible with OpenSearch-Dashboards 2.12.0
+
+### Maintenance
+
+* Remove unused integtest.sh file ([#954](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/954))
+* Increment version to 2.12.0.0 ([#928](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/928))
+* Update the babel require ([#935](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/935))
+
+### Enhancements
+
+* sort by managed policy feature ([#950](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/950))
+* Update background color in "state" block ([#903](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/903))
+* Rename indices to indexes ([#926](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/926))
+* adding cancel button to change policy ([#919](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/919))
+
+### Infrastructure
+
+* Onboard jenkins prod docker images to github actions ([#907](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/907))
+
+### Documentation
+
+* Version 2.12 Release Notes Draft ([#971](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/971))