fix(package): update read-pkg to version 5.0.0

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
     "normalize-url": "^4.0.0",
     "npm": "^6.8.0",
     "rc": "^1.2.8",
-    "read-pkg": "^4.0.0",
+    "read-pkg": "^5.0.0",
     "registry-auth-token": "^3.3.1"
   },
   "devDependencies": {