feat: update cordova engine for future 8.0.0 (#338)

Author: erisu

package-lock.json

@@ -38,7 +38,7 @@
         "cordova-android": ">=3.6.0 <11.0.0",
         "cordova-windows": ">=4.4.0"
       },
-      "7.0.0": {
+      "8.0.0": {
         "cordova": ">100"
       }
     }