turbopack support (#1639)

Co-authored-by: Adam Skoufis <[email protected]>
Co-authored-by: Adam Skoufis <[email protected]>

Author: RJWadley

.changeset/fresh-wombats-stick.md

@@ -12,3 +12,4 @@ test-results
 .next
 .DS_Store
 .idea
+next-env.d.ts

.changeset/green-years-yawn.md

@@ -12,3 +12,4 @@ pnpm-lock.yaml
 *-snapshots
 test-results
 examples/remix/build
+.pnpm-store

.changeset/heavy-boxes-protect.md

@@ -1,14 +1,12 @@
 {
-  "name": "@fixtures/next-pages-router",
+  "name": "@fixtures/next-12-pages-router",
   "description": "Next pages router fixtures",
   "version": "0.0.7",
   "private": true,
   "scripts": {
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "clean-build": "pnpm clean && next build",
-    "clean": "pnpm clean:dev && pnpm clean:prod",
     "clean:dev": "rm -rf .next",
     "clean:prod": "rm -rf dist"
   },