updated dev devendencies

Author: Dipak Sarkar

package.json

@@ -25,6 +25,7 @@
     "@babel/core": "^7.9.0",
     "@babel/preset-env": "^7.9.5",
     "@vue/cli-plugin-unit-jest": "^4.5.13",
+    "@vue/cli-service": "^4.5.13",
     "@vue/test-utils": "^1.2.2",
     "@vuedoc/md": "^1.6.0",
     "@vuepress/plugin-back-to-top": "^1.8.2",

rollup.config.js

@@ -1,12 +1,12 @@
-import vue from 'rollup-plugin-vue';
-import buble from 'rollup-plugin-buble';
-import commonjs from 'rollup-plugin-commonjs';
-import replace from 'rollup-plugin-replace';
-import { terser } from 'rollup-plugin-terser';
-import resolve from 'rollup-plugin-node-resolve';
+import vue from 'rollup-plugin-vue'
+import buble from 'rollup-plugin-buble'
+import commonjs from 'rollup-plugin-commonjs'
+import replace from 'rollup-plugin-replace'
+import { terser } from 'rollup-plugin-terser'
+import resolve from 'rollup-plugin-node-resolve'
 import filesize from 'rollup-plugin-filesize'
-import css from 'rollup-plugin-css-only';
-import pkg from './package.json';
+import css from 'rollup-plugin-css-only'
+import pkg from './package.json'
 
 const banner = `/**
  * Vue Number Format ${pkg.version}