refactor: replace --disturl option with NODEJS_ORG_MIRROR env variable

for better compatibility with pnpm 4 (which does not allow the
`--disturl` option)

packages/@vue/cli/lib/util/ProjectPackageManager.js

@@ -126,7 +126,8 @@ class PackageManager {
     args.push(`--registry=${registry}`)
 
     if (registry === registries.taobao) {
-      args.push(`--disturl=${TAOBAO_DIST_URL}`)
+      // for node-gyp
+      process.env.NODEJS_ORG_MIRROR = TAOBAO_DIST_URL
     }
 
     return args