Changelog: Updated changelog for 10.2.1 (#78386)

* Changelog: Updated changelog for 10.2.1

* Update CHANGELOG.md

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Co-authored-by: grafanabot <bot@grafana.com>
Co-authored-by: Shirley <4163034+fridgepoet@users.noreply.github.com>

CHANGELOG.md

@@ -10,6 +10,7 @@
 
 - **Dashboards:** Fix dashboard listing when user can't list any folders. [#77988](https://github.com/grafana/grafana/issues/77988), [@IevaVasiljeva](https://github.com/IevaVasiljeva)
 - **Search:** Modify query for better performance. [#77713](https://github.com/grafana/grafana/issues/77713), [@papagian](https://github.com/papagian)
+- **Dashboards:** Fix issue causing crashes when saving new dashboard. [#77641](https://github.com/grafana/grafana/issues/77641), [@kaydelaney](https://github.com/kaydelaney)
 - **RBAC:** Allow scoping access to root level dashboards. [#77608](https://github.com/grafana/grafana/issues/77608), [@IevaVasiljeva](https://github.com/IevaVasiljeva)
 - **CloudWatch Logs:** Add labels to alert and expression queries. [#77594](https://github.com/grafana/grafana/issues/77594), [@iwysiu](https://github.com/iwysiu)
 - **Bug Fix:** Respect data source version when provisioning. [#77542](https://github.com/grafana/grafana/issues/77542), [@andresmgot](https://github.com/andresmgot)