Fix wrong import

src/plugins/next-mocks/alias/headers/cookies.ts

@@ -1,11 +1,6 @@
-// We need this import to be a singleton, and because it's used in multiple entrypoints
-// both in ESM and CJS, importing it via the package name instead of having a local import
-// is the only way to achieve it actually being a singleton
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore we must ignore types here as during compilation they are not generated yet
-import { headers } from "@storybook/nextjs/headers.mock";
 import { fn } from "@storybook/test";
 import { RequestCookies } from "next/dist/compiled/@edge-runtime/cookies/index.js";
+import { headers } from "./index.js";
 
 class RequestCookiesMock extends RequestCookies {
   get = fn(super.get.bind(this)).mockName("next/headers::cookies().get");