Added release notes for 1.3.11 (#8302)

Signed-off-by: Owais Kazi <owaiskazi19@gmail.com>
(cherry picked from commit 3a1dd3a)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

release-notes/opensearch.release-notes-1.3.11.md

@@ -0,0 +1,13 @@
+## 2023-06-27 Version 1.3.11 Release Notes
+
+### Upgrades
+- Upgrade `netty` from 4.1.91.Final to 4.1.93.Final ([#7901](https://github.com/opensearch-project/OpenSearch/pull/7901))
+- Upgrade `spock-core` from 1.3-groovy-2.5 to 2.3-groovy-2.5 ([#8119](https://github.com/opensearch-project/OpenSearch/pull/8119))
+- Upgrade `com.google.guava:guava` from 31.0.1-jre to 32.0.1-jre ([#8107](https://github.com/opensearch-project/OpenSearch/pull/8107))
+- Upgrade versions of gradle-info-plugin and nebula-publishing-plugin ([#8150](https://github.com/opensearch-project/OpenSearch/pull/8150))
+- Upgrade `json-smart` from 2.4.7 to 2.4.11 in plugins/repository-hdfs/ ([#8160](https://github.com/opensearch-project/OpenSearch/pull/8160))
+- Upgrade `netty` from 4.1.93.Final to 4.1.94.Final ([#8191](https://github.com/opensearch-project/OpenSearch/pull/8191))
+
+### Bug Fixes
+- Fix mapping char_filter when mapping a hashtag ([#7591](https://github.com/opensearch-project/OpenSearch/pull/7591))
+- Force nebula plugins to use latest org.bouncycastle:* artifacts ([#8233](https://github.com/opensearch-project/OpenSearch/pull/8233))