Use HEAD req for isUrlOk check (#14994)

Co-authored-by: NCristian Dominguez <cristiand391@users.noreply.github.com>

packages/create-next-app/helpers/examples.ts

@@ -14,7 +14,7 @@ export type RepoInfo = {
 }
 
 export async function isUrlOk(url: string): Promise<boolean> {
-  const res = await got(url).catch((e) => e)
+  const res = await got.head(url).catch((e) => e)
   return res.statusCode === 200
 }