refactor(databases): update backup queries to use team-specific method

- Modified backup retrieval logic in DatabasesController to utilize the new ownedByCurrentTeamAPI method for improved access control based on team ID.
- Enhanced code consistency and maintainability by centralizing team-based filtering in the ScheduledDatabaseBackup model.

app/Models/ScheduledDatabaseBackup.php

@@ -15,6 +15,11 @@ class ScheduledDatabaseBackup extends BaseModel
         return ScheduledDatabaseBackup::whereRelation('team', 'id', currentTeam()->id)->orderBy('name');
     }
 
+    public static function ownedByCurrentTeamAPI(int $teamId)
+    {
+        return ScheduledDatabaseBackup::whereRelation('team', 'id', $teamId)->orderBy('name');
+    }
+
     public function team()
     {
         return $this->belongsTo(Team::class);