Release: update changelog for 11.1.5 (#92488)

* Update changelog

* Lint

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Andreas Christou <andreas.christou@grafana.com>

CHANGELOG.md

@@ -1,3 +1,23 @@
+<!-- 11.1.5 START -->
+
+# 11.1.5 (2024-08-27)
+
+### Bug fixes
+
+- **Alerting:** Fix permissions for prometheus rule endpoints [#91414](https://github.com/grafana/grafana/pull/91414), [@yuri-tceretian](https://github.com/yuri-tceretian)
+- **Alerting:** Fix persisting result fingerprint that is used by recovery threshold [#91290](https://github.com/grafana/grafana/pull/91290), [@yuri-tceretian](https://github.com/yuri-tceretian)
+- **Auditing:** Fix a possible crash when audit logger parses responses for failed requests (Enterprise)
+- **RBAC:** Fix an issue with server admins not being able to manage users in orgs that they don't belong to [#92273](https://github.com/grafana/grafana/pull/92273), [@IevaVasiljeva](https://github.com/IevaVasiljeva)
+- **RBAC:** Fix an issue with server admins not being able to manage users in orgs that they dont belong to (Enterprise)
+- **RBAC:** Fix seeder failures when inserting duplicated permissions (Enterprise)
+- **Snapshots:** Fix panic when snapshot_remove_expired is true [#91232](https://github.com/grafana/grafana/pull/91232), [@ryantxu](https://github.com/ryantxu)
+- **VizTooltip:** Fix positioning at bottom and right edges on mobile [#92137](https://github.com/grafana/grafana/pull/92137), [@leeoniya](https://github.com/leeoniya)
+
+### Plugin development fixes & changes
+
+- **Bugfix:** QueryField typeahead missing background color [#92316](https://github.com/grafana/grafana/pull/92316), [@mckn](https://github.com/mckn)
+
+<!-- 11.1.5 END -->
 <!-- 11.0.4 START -->
 
 # 11.0.4 (2024-08-27)