Bump register-service-worker from 1.6.2 to 1.7.0 in /src/docs

Bumps [register-service-worker](https://github.com/yyx990803/register-service-worker) from 1.6.2 to 1.7.0.
- [Release notes](https://github.com/yyx990803/register-service-worker/releases)
- [Changelog](https://github.com/yyx990803/register-service-worker/blob/master/CHANGELOG.md)
- [Commits](yyx990803/register-service-worker@v1.6.2...v1.7.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

src/docs/package-lock.json

@@ -5,7 +5,7 @@
     "not ie <= 8"
   ],
   "dependencies": {
-    "register-service-worker": "^1.6.2",
+    "register-service-worker": "^1.7.0",
     "vue": "^2.6.11",
     "vue-router": "^3.1.6"
   },