chore(types): delete @ts-ignore or use @ts-expected-error instead (#3669)

Co-authored-by: heyunfei.i <heyunfei.i@bytedance.com>

packages/reactivity/__tests__/reactiveArray.spec.ts

@@ -112,14 +112,13 @@ describe('reactivity/reactive/Array', () => {
   })
 
   test('add non-integer prop on Array should not trigger length dependency', () => {
-    const array = new Array(3)
+    const array: any[] & { x?: string } = new Array(3)
     const observed = reactive(array)
     const fn = jest.fn()
     effect(() => {
       fn(observed.length)
     })
     expect(fn).toHaveBeenCalledTimes(1)
-    // @ts-ignore
     observed.x = 'x'
     expect(fn).toHaveBeenCalledTimes(1)
     observed[-1] = 'x'