Automated changelog update [skip ci]

CHANGELOG.md

@@ -16,6 +16,7 @@ The following sections list the changes for unreleased.
 * Change - Switched default configuration to use libregraph/idm: [#3331](https://github.com/owncloud/ocis/pull/3331)
 * Change - Rename MetadataUserID: [#3671](https://github.com/owncloud/ocis/pull/3671)
 * Change - Use new space ID util functions: [#3648](https://github.com/owncloud/ocis/pull/3648)
+* Change - Rename serviceUser to systemUser: [#3673](https://github.com/owncloud/ocis/pull/3673)
 * Change - Split MachineAuth from SystemUser: [#3672](https://github.com/owncloud/ocis/pull/3672)
 * Enhancement - Align service naming: [#3606](https://github.com/owncloud/ocis/pull/3606)
 * Enhancement - Wrap metadata storage with dedicated reva gateway: [#3602](https://github.com/owncloud/ocis/pull/3602)
@@ -116,6 +117,12 @@ The following sections list the changes for unreleased.
    https://github.com/owncloud/ocis/pull/3648
    https://github.com/owncloud/ocis/pull/3669
 
+* Change - Rename serviceUser to systemUser: [#3673](https://github.com/owncloud/ocis/pull/3673)
+
+   We renamed serviceUser to systemUser in all configs and vars including yaml-tags and env vars
+
+   https://github.com/owncloud/ocis/pull/3673
+
 * Change - Split MachineAuth from SystemUser: [#3672](https://github.com/owncloud/ocis/pull/3672)
 
    We now have two different APIKeys: MachineAuth for the machine-auth service and SystemUser