Replace pug-cli to @anduh/pug-cli

To fix pugjs/pug#3312

Old original `pug-cli` depends on `[email protected]`. `@anduh/pug-cli`
is the fork to fix this problem.

ref. pugjs/pug-cli#88 (comment)

Author: kaosf

package.json

@@ -16,6 +16,6 @@
   "license": "CC-BY-NC-SA-4.0",
   "dependencies": {
     "pug": "^3.0.2",
-    "pug-cli": "^1.0.0-alpha6"
+    "@anduh/pug-cli": "1.0.0-alpha8"
   }
 }