chore: upgrade register-service-worker version

closes vuejs#2964

Author: haoqunjiang

packages/@vue/cli-plugin-pwa/generator/index.js

@@ -1,7 +1,7 @@
 module.exports = api => {
   api.extendPackage({
     dependencies: {
-      'register-service-worker': '^1.0.0'
+      'register-service-worker': '^1.5.2'
     }
   })
   api.injectImports(api.entryFile, `import './registerServiceWorker'`)

packages/@vue/cli-plugin-pwa/generator/template/src/registerServiceWorker.js

@@ -10,9 +10,15 @@ if (process.env.NODE_ENV === 'production') {
         'For more details, visit https://goo.gl/AFskqB'
       )
     },
+    registered () {
+      console.log('Service worker has been registered.')
+    },
     cached () {
       console.log('Content has been cached for offline use.')
     },
+    updatefound () {
+      console.log('New content is downloading.')
+    },
     updated () {
       console.log('New content is available; please refresh.')
     },

packages/@vue/cli-plugin-pwa/package.json

@@ -26,6 +26,6 @@
     "workbox-webpack-plugin": "^3.6.3"
   },
   "devDependencies": {
-    "register-service-worker": "^1.0.0"
+    "register-service-worker": "^1.5.2"
   }
 }