test(react-query-devtools): add test case for not in `process.env.NOD…

…E_ENV='development'` (#6940)

* test(react-query-devtools): add test case for production mode

* chore: update

* chore: update

---------

Co-authored-by: Dominik Dorfmeister <office@dorfmeister.cc>

packages/react-query-devtools/src/__tests__/not-development.test.tsx

@@ -0,0 +1,9 @@
+import { describe, expect, it } from 'vitest'
+import { ReactQueryDevtools } from '..'
+
+describe('ReactQueryDevtools not in process.env.NODE_ENV=development', () => {
+  it('should return null', () => {
+    expect(process.env.NODE_ENV).not.toBe('development')
+    expect(ReactQueryDevtools({})).toBeNull()
+  })
+})