fix: send 'STOP' event on phase end

Previously 'START' was sent for both start and finish.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
(cherry picked from commit 3cd1c6b)

internal/app/machined/pkg/runtime/v1alpha1/v1alpha1_controller.go

@@ -266,7 +266,7 @@ func (c *Controller) runPhase(ctx context.Context, phase runtime.Phase, seq runt
 
 	defer c.Runtime().Events().Publish(ctx, &machine.PhaseEvent{
 		Phase:  phase.Name,
-		Action: machine.PhaseEvent_START,
+		Action: machine.PhaseEvent_STOP,
 	})
 
 	eg, ctx := errgroup.WithContext(ctx)