release notes 3.0.0.0 (#1925) (#1926)

(cherry picked from commit b858b40)

Signed-off-by: Paul Sebastian <paulstn@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-observability.release-notes-3.0.0.0.md

@@ -0,0 +1,18 @@
+## Version 3.0.0.0 Release Notes
+
+Compatible with OpenSearch 3.0.0
+
+### Bug Fixes
+
+- Fix build due to phasing off SecurityManager usage in favor of Java Agent ([#1916](https://github.com/opensearch-project/observability/pull/1916))
+
+### Infrastructure
+
+- Using java-agent gradle plugin to phase off Security Manager in favor of Java-agent. ([#1917](https://github.com/opensearch-project/observability/pull/1917))
+
+### Maintenance
+
+- Bump version 3.0.0-alpha1-SNAPSHOT ([#1904] (https://github.com/opensearch-project/observability/pull/1904))
+- Bump jdk to 21 for maven snapshot build ([#1909] (https://github.com/opensearch-project/observability/pull/1909))
+- Bump version 3.0.0-beta1-SNAPSHOT ([#1914] (https://github.com/opensearch-project/observability/pull/1914))
+- [AUTO] Increment version to 3.1.0-SNAPSHOT ([#1922](https://github.com/opensearch-project/observability/pull/1922))