changelog: add notes about closing #12229

[skip ci]

CHANGELOG.md

@@ -52,6 +52,7 @@ om/grafana/grafana/issues/12668)
 * **Docker**: Make it possible to set a specific plugin url [#12861](https://github.com/grafana/grafana/pull/12861), thx [ClementGautier](https://github.com/ClementGautier)
 * **Graphite**: Fix for quoting of int function parameters (when using variables) [#11927](https://github.com/grafana/grafana/pull/11927)
 * **InfluxDB**: Support timeFilter in query templating for InfluxDB [#12598](https://github.com/grafana/grafana/pull/12598), thx [kichristensen](https://github.com/kichristensen)
+* **Provisioning**: Should allow one default datasource per organisation [#12229](https://github.com/grafana/grafana/issues/12229)
 
 ### Breaking changes