Helm: Update changelog (#9067)

Signed-off-by: fabio trigari <trigarifabio@gmail.com>

Author: ftrigari

operations/helm/charts/mimir-distributed/CHANGELOG.md

@@ -29,6 +29,7 @@ Entries should include a reference to the Pull Request that introduced the chang
 
 ## main / unreleased
 
+* [FEATURE] Add common labels to all Mimir objects, which can be enabled via global.commonLabels. #10385
 * [CHANGE] Memcached: Update to Memcached 1.6.34. #10318
 * [ENHANCEMENT] Minio: update subchart to v5.4.0. #10346
 * [ENHANCEMENT] Individual mimir components can override their container images via the *.image values. The component's image definitions always override the values set in global `image` or `enterprise.image`. #10340