fix(xo-server-usage-report): change dataset size (#6723)

Fixes zammad#12215

CHANGELOG.unreleased.md

@@ -11,6 +11,7 @@
 
 > Users must be able to say: “I had this issue, happy to know it's fixed”
 
+- [Plugins/usage-report] Compute stats on configured period instead of the whole year (PR [#6723](https://github.com/vatesfr/xen-orchestra/pull/6723))
 - [Backup] Fix `Invalid parameters` when deleting `speed limit` value (PR [#6768](https://github.com/vatesfr/xen-orchestra/pull/6768))
 
 ### Packages to release
@@ -31,5 +32,6 @@
 
 - xo-web patch
 - xo-server minor
+- xo-server-usage-report patch
 
 <!--packages-end-->