Closes: https://github.com/fleetdm/fleet/issues/39836 Changes: - Added `fleetMaintainedAppsWindows` and `fleetMaintainedAppsMacOS` attributes to the HistoricalUsageSnapshot model - Added `fleetMaintainedAppsWindows` and `fleetMaintainedAppsMacOS` as inputs to the receive-usage-analytics webhook Note: This pull request requires database migrations and should only be merged after the website's database is updated while it is in maintenance mode.