test(react-query-devtools): resolve ESLint typescript-eslint/require-await warnings (#8912)

Author: minseong0324

packages/react-query-devtools/src/__tests__/devtools.test.tsx

@@ -1,7 +1,7 @@
 import { describe, expect, it } from 'vitest'
 
 describe('ReactQueryDevtools', () => {
-  it('should be able to open and close devtools', async () => {
+  it('should be able to open and close devtools', () => {
     expect(1).toBe(1)
   })
 })