Add release notes for 3.6.0 (#1420) (#1421)

(cherry picked from commit 9a122ce)

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-index-management-dashboards-plugin.release-notes-3.6.0.0.md

@@ -0,0 +1,14 @@
+## Version 3.6.0 Release Notes
+
+Compatible with OpenSearch and OpenSearch Dashboards version 3.6.0
+
+### Bug Fixes
+
+* Fix CVE-2025-13465 security vulnerability ([#1411](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/1411))
+* Fix CVE-2025-15284 security vulnerability ([#1410](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/1410))
+* Fix CVE-2026-2739 security vulnerability ([#1412](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/1412))
+
+### Maintenance
+
+* Update lodash to 4.18.1 to address CVE-2026-4800 ([#1418](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/1418))
+* Upgrade React from 16 to 18, fixing CVE-2025-64718 and resolving failing Cypress tests ([#1391](https://github.com/opensearch-project/index-management-dashboards-plugin/pull/1391))