* Add release notes for 3.6.0

Signed-off-by: opensearch-ci <opensearch-infra@amazon.com>

* Update opensearch-security-analytics.release-notes-3.6.0.0.md

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

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Signed-off-by: opensearch-ci <opensearch-infra@amazon.com>
Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>
Co-authored-by: Peter Zhu <zhujiaxi@amazon.com>