docs: Generate changelog for v5.2.0

changes/v5.2.0.en.md

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+# v5.2.0
+
+## Enhancements
+
+- [#11469](https://github.com/emqx/emqx/pull/11469) Added support for specifying username in Redis authentication.
+
+- [#11487](https://github.com/emqx/emqx/pull/11487) The bcrypt work factor is limited to the range 5-10, because higher values consume too much CPU resources.
+  Bcrypt library is updated to allow parallel hash evaluation.
+
+- [#11496](https://github.com/emqx/emqx/pull/11496) Disabled the Erlang VM Prometheus exporter by default to improve performance and security.
+
+- [#11497](https://github.com/emqx/emqx/pull/11497) Enhanced broker metrics collection and export by adding new metrics for messages, overload protection, authorization, authentication,
+  and improving naming consistency for OpenTelemetry.
+
+- [#11490](https://github.com/emqx/emqx/pull/11490) Quickly return the result when the password is absent in password-based authentication.
+
+- [#11532](https://github.com/emqx/emqx/pull/11532) Improve some error reasons when parsing invalid packets.
+
+## Bug Fixes
+
+- [#11466](https://github.com/emqx/emqx/pull/11466) Fixed a crash that occurred when setting the `ssl_options.ciphers` configuration option to an empty string ("").
+
+- [#11480](https://github.com/emqx/emqx/pull/11480) Return more user-friendly messages when rule functions are fed bad arguments.
+
+- [#11493](https://github.com/emqx/emqx/pull/11493) Examples and documentation for /api/v5/publish bad request response have been fixed. Previously the documentation example said that the bad request response could return a list in the body which was not actually the case.
+
+- [#11506](https://github.com/emqx/emqx/pull/11506) Don't download a trace log file if it is empty.
+
+  After this fix, GET `/api/v5/trace/clientempty/download` returns 404 `{"code":"NOT_FOUND","message":"Trace is empty"}`
+  If no events matching the trace condition occurred.
+
+- [#11520](https://github.com/emqx/emqx/pull/11520) Fixed issue where packets_connack_sent metric was not incremented on CONNACK packets sent with non-zero ack_flag
+
+- [#11522](https://github.com/emqx/emqx/pull/11522) Improved error message for rule engine schema registry when schema name exceeds permissible length.
+
+- [#11523](https://github.com/emqx/emqx/pull/11523) Fixes misunderstood prompt when invalid certificates/keys were specified for the `/configs` API.
+
+- [#11531](https://github.com/emqx/emqx/pull/11531) Fixed issue where authorization cache cleaning cli was not working properly for specific client ID.
+
+- [#11534](https://github.com/emqx/emqx/pull/11534) Fixed increment on data bridge statistics when bridge is unhealthy. Now, messages sent to unhealthy bridges are being counted as dropped messages.
+
+- [#11540](https://github.com/emqx/emqx/pull/11540) Improved HTTP response when attempting to create a bridge with an invalid name.
+
+- [#11548](https://github.com/emqx/emqx/pull/11548) Fixed an issue that prevented the plugin order to be updated on the whole cluster.
+
+- [#11564](https://github.com/emqx/emqx/pull/11564) Fix cluster partition autoheal functionality.
+  Implement autohealing for the clusters that split into multiple partitions.