[client] Remove @zeit/fetch and always use node-fetch instead (#12171)

[`@zeit/fetch` is archived](https://github.com/vercel/fetch) and it causes deprecation warnings for `util._extend` usage.

Author: onsclom

.changeset/red-toys-raise.md

@@ -0,0 +1,5 @@
+---
+'@vercel/client': patch
+---
+
+Replace `@zeit/fetch` usage with `node-fetch`

packages/client/package.json

@@ -40,7 +40,6 @@
     "@vercel/build-utils": "8.4.5",
     "@vercel/error-utils": "2.0.2",
     "@vercel/routing-utils": "3.1.0",
-    "@zeit/fetch": "5.2.0",
     "async-retry": "1.2.3",
     "async-sema": "3.0.0",
     "fs-extra": "8.0.1",

packages/client/src/upload.ts

@@ -145,8 +145,7 @@ export async function* upload(
               apiUrl,
               userAgent,
             },
-            clientOptions.debug,
-            true
+            clientOptions.debug
           );
 
           if (res.status === 200) {

packages/client/src/utils/fetch.ts

@@ -1,6 +1,5 @@
 import { FilesMap } from './hashes';
-import { FetchOptions } from '@zeit/fetch';
-import { nodeFetch, zeitFetch } from './fetch';
+import nodeFetch, { RequestInit } from 'node-fetch';
 import { join, sep, relative, basename } from 'path';
 import { URL } from 'url';
 import ignore from 'ignore';
@@ -231,7 +230,7 @@ function clearRelative(str: string) {
   return str.replace(/(\n|^)\.\//g, '$1');
 }
 
-interface FetchOpts extends FetchOptions {
+interface FetchOpts extends RequestInit {
   apiUrl?: string;
   method?: string;
   teamId?: string;
@@ -243,8 +242,7 @@ export const fetch = async (
   url: string,
   token: string,
   opts: FetchOpts = {},
-  debugEnabled?: boolean,
-  useNodeFetch?: boolean
+  debugEnabled?: boolean
 ): Promise<any> => {
   semaphore.acquire();
   const debug = createDebug(debugEnabled);
@@ -278,9 +276,7 @@ export const fetch = async (
 
   debug(`${opts.method || 'GET'} ${url}`);
   time = Date.now();
-  const res = useNodeFetch
-    ? await nodeFetch(url, opts)
-    : await zeitFetch(url, opts);
+  const res = await nodeFetch(url, opts);
   debug(`DONE in ${Date.now() - time}ms: ${opts.method || 'GET'} ${url}`);
   semaphore.release();