chore(deps-dev): bump @vuepress/plugin-pwa from 1.6.0 to 1.7.0

Bumps [@vuepress/plugin-pwa](https://github.com/vuejs/vuepress/tree/HEAD/packages/@vuepress/plugin-pwa) from 1.6.0 to 1.7.0.
- [Release notes](https://github.com/vuejs/vuepress/releases)
- [Changelog](https://github.com/vuejs/vuepress/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vuepress/commits/v1.7.0/packages/@vuepress/plugin-pwa)

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

package.json

@@ -41,7 +41,7 @@
         "@babel/preset-env": "^7.4.5",
         "@vuepress/plugin-back-to-top": "1.7.0",
         "@vuepress/plugin-google-analytics": "1.6.0",
-        "@vuepress/plugin-pwa": "1.6.0",
+        "@vuepress/plugin-pwa": "1.7.0",
         "art-template": "4.13.2",
         "art-template-loader": "1.4.3",
         "autoprefixer": "^9.6.1",

yarn.lock

@@ -1254,12 +1254,12 @@
   dependencies:
     nprogress "^0.2.0"
 
-"@vuepress/plugin-pwa@1.6.0":
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-pwa/-/plugin-pwa-1.6.0.tgz#4de907286cf5afc6e8ced03625ec7ed66a7c2310"
-  integrity sha512-8Y3KnbEtprolA83AGBcRdzVs64+ZjQRGWaRWAeEZIsWl1gNuwcMT+voS69IpbqMUH7cw8v/KDQdIJkEjvOBe0w==
+"@vuepress/plugin-pwa@1.7.0":
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-pwa/-/plugin-pwa-1.7.0.tgz#5a23020d169eff006f8edff136f0f63c267b7d4b"
+  integrity sha512-jFAxnkvRoN9t4In8XdAQskTVErhX+mK+cHca1yvX2L0Z8KyObextLmZuCnUJzsQHgIeI8cnr50xwih2uFijSQw==
   dependencies:
-    "@vuepress/shared-utils" "1.6.0"
+    "@vuepress/shared-utils" "1.7.0"
     register-service-worker "^1.7.0"
     workbox-build "^4.3.1"
 
@@ -1275,21 +1275,6 @@
   resolved "https://registry.yarnpkg.com/@vuepress/plugin-search/-/plugin-search-1.7.0.tgz#c59e6bf0d6b4e9bac795a0942ddc6c16d3405aed"
   integrity sha512-BayDFigG4rR5/5bO8d4iST4ffaLv4uy+KsmNd3NVGwjMMhfqx8kc+N1VrtsKrNzKAOfH6Vr8OEDa60Xk+UlHrg==
 
-"@vuepress/shared-utils@1.6.0":
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/@vuepress/shared-utils/-/shared-utils-1.6.0.tgz#8bf0c9c4e502bc6f10e70db3b236e816d8165631"
-  integrity sha512-+TMHgW7gmVY2lRX5qpPbsLkbxTBbzRo+Ar05tvEI0bAG0c6v2gWyQr3BchdbLyRJxrAVk530PABAjM8roDJ9bw==
-  dependencies:
-    chalk "^2.3.2"
-    escape-html "^1.0.3"
-    fs-extra "^7.0.1"
-    globby "^9.2.0"
-    gray-matter "^4.0.1"
-    hash-sum "^1.0.2"
-    semver "^6.0.0"
-    toml "^3.0.0"
-    upath "^1.1.0"
-
 "@vuepress/shared-utils@1.7.0":
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/@vuepress/shared-utils/-/shared-utils-1.7.0.tgz#e04d587076960ecf932dffd784f24695dd3ec419"