Added Release Notes for v3.0.0-beta1 (#1403)

Signed-off-by: Vaibhav Agarwal <[email protected]>

Author: vaibhoag

release-notes/opensearch-index-management.release-notes-3.0.0.0-beta1.md

@@ -0,0 +1,9 @@
+## Version 3.0.0.0-beta1 2025-04-08
+
+Compatible with OpenSearch 3.0.0-beta1
+
+### Bug Fixes
+* Fix issue in Docker Security Tests where qualifier is not being parsed correctly ([#1401](https://github.com/opensearch-project/index-management/pull/1401))
+
+### Maintenance
+* Update 3.0.0 qualifier from alpha1 to beta1 ([#1398](https://github.com/opensearch-project/index-management/pull/1398))