[Backport 2.x] [2.14][chore] update release notes

[opensearch-trigger-bot[bot]]

Backport 8c99ce453112c62d31f1d9d2ad57d7f1417e9265 from #6705.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.57%. Comparing base (31694db) to head (6101c9c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.x #6774 +/- ## ======================================= Coverage 67.57% 67.57% ======================================= Files 3425 3425 Lines 67331 67331 Branches 10976 10976 ======================================= Hits 45498 45498 Misses 19165 19165 Partials 2668 2668 ``` | [Flag](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | Coverage Δ | | |---|---|---| | [Linux_1](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `33.06% <ø> (ø)` | | | [Linux_2](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `55.16% <ø> (ø)` | | | [Linux_3](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `45.17% <ø> (ø)` | | | [Linux_4](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `34.87% <ø> (ø)` | | | [Windows_1](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `33.08% <ø> (ø)` | | | [Windows_2](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `55.13% <ø> (ø)` | | | [Windows_3](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `45.18% <ø> (ø)` | | | [Windows_4](https://app.codecov.io/gh/opensearch-project/OpenSearch-Dashboards/pull/6774/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `34.87% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.