fix: strip non-ansi characters from registry config (#5808)

To deal with malformed stdout result retrieved from child processes.

Fixes #5802

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

@@ -5,6 +5,8 @@ const ini = require('ini')
 const minimist = require('minimist')
 const LRU = require('lru-cache')
 
+const stripAnsi = require('strip-ansi')
+
 const {
   chalk,
   execa,
@@ -152,6 +154,7 @@ class PackageManager {
       }
     }
 
+    this._registry = stripAnsi(this._registry).trim()
     return this._registry
   }
 

packages/@vue/cli/package.json

@@ -55,6 +55,7 @@
     "resolve": "^1.17.0",
     "shortid": "^2.2.15",
     "slash": "^3.0.0",
+    "strip-ansi": "^6.0.0",
     "validate-npm-package-name": "^3.0.0",
     "vue": "^2.6.11",
     "vue-codemod": "^0.0.4",