add release notes for 2.19.0 (#437)

Signed-off-by: Ritvi Bhatt <ribhatt@amazon.com>
Co-authored-by: Ritvi Bhatt <ribhatt@amazon.com>
Co-authored-by: Sumukh Swamy <sumukhhs@amazon.com>
(cherry picked from commit 9d4436e)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

release-notes/opensearch-query-workbench.release-notes-2.19.0.0.md

@@ -0,0 +1,9 @@
+## Version 2.19.0.0 Release Notes
+
+Compatible with OpenSearch and OpenSearch Dashboards 2.19.0
+
+### Maintenance
+
+- Increment version to 2.19.0.0 ([#422](https://github.com/opensearch-project/dashboards-query-workbench/pull/422))
+- Downgrade cypress to 12.17.4 ([#430](https://github.com/opensearch-project/dashboards-query-workbench/pull/430))
+- [CVE-2024-21538] Bump cross-spawn from 6.0.5 and 7.0.3 to 7.0.5 ([434](https://github.com/opensearch-project/dashboards-query-workbench/pull/434))