Update Vercel build command to use @patchcab/core from the source and not NPM

Author: rihardsgravis

package.json

@@ -6,7 +6,7 @@
     "modules"
   ],
   "scripts": {
-    "build": "yarn --cwd ./core build && yarn --cwd ./modules install --focus && yarn --cwd ./modules build && cpy './modules/public/modules.json' './core/public/' && cpy './modules/public/modules' './core/public/modules/@patchcab-modules'"
+    "build": "yarn --cwd ./core build && yarn --cwd ./core pack --filename patchcab.tgz && yarn --cwd ./modules add ../patchcab.tgz && cpy './modules/public/modules.json' './core/public/' && cpy './modules/public/modules' './core/public/modules/@patchcab-modules'"
   },
   "dependencies": {}
 }