fix(syncing-server): invalidating cache for user removed from shared vault (#812)

packages/syncing-server/src/Infra/InversifyExpressUtils/Base/BaseSharedVaultUsersController.ts

@@ -65,7 +65,7 @@ export class BaseSharedVaultUsersController extends BaseHttpController {
       )
     }
 
-    response.setHeader('x-invalidate-cache', response.locals.user.uuid)
+    response.setHeader('x-invalidate-cache', request.params.userUuid)
 
     return this.json({
       success: true,