Ensure maintained apps are pulled immediately on next server start after FMAv2/WinFMA upgrade (#27589)

For #27582.

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

<!-- Note that API documentation changes are now addressed by the
product design team. -->

- [x] If database migrations are included, checked table schema to
confirm autoupdate
- For database migrations:
- [x] Checked schema for all modified table for columns that will
auto-update timestamps during migration.
- [x] Confirmed that updating the timestamps is acceptable, and will not
cause unwanted side effects.
- [x] Ensured the correct collation is explicitly set for character
columns (`COLLATE utf8mb4_unicode_ci`).
- [x] Manual QA for all new/changed functionality
- [x] For unreleased bug fixes in a release candidate, confirmed that
the fix is not expected to adversely impact load test results or alerted
the release DRI if additional load testing is needed.

server/datastore/mysql/migrations/tables/20250320200000_FMAv2.go

@@ -4,6 +4,7 @@ import (
 	"database/sql"
 	"fmt"
 
+	"github.com/fleetdm/fleet/v4/server/fleet"
 	"github.com/jmoiron/sqlx"
 )
 
@@ -109,6 +110,13 @@ ALTER TABLE fleet_maintained_apps
 		return fmt.Errorf("failed to rename Zoom FMA: %w", err)
 	}
 
+	// Clear out scheduled runs for the maintained_apps cron. This will force the cron to run on
+	// next server start and sync the full maintained apps list, including Windows titles.
+	_, err = tx.Exec(`DELETE FROM cron_stats WHERE name = ? AND stats_type = ?`, fleet.CronMaintainedApps, fleet.CronStatsTypeScheduled)
+	if err != nil {
+		return fmt.Errorf("failed to clear past scheduled runs of maintained_apps from cron_stats table: %w", err)
+	}
+
 	return nil
 }