chore(zustand): update

packages/core/src/hooks/useViewport.ts

@@ -1,4 +1,4 @@
-import shallow from 'zustand/shallow';
+import { shallow } from 'zustand/shallow';
 
 import { useStore } from '../hooks/useStore';
 import type { Viewport, ReactFlowState } from '../types';

packages/core/src/hooks/useViewportHelper.ts

@@ -1,6 +1,6 @@
 import { useMemo } from 'react';
 import { zoomIdentity } from 'd3-zoom';
-import shallow from 'zustand/shallow';
+import { shallow } from 'zustand/shallow';
 
 import { useStoreApi, useStore } from '../hooks/useStore';
 import { pointToRendererPoint, getTransformForBounds, getD3Transition } from '../utils/graph';