chore: upgrade vue-class-component

package.json

@@ -60,6 +60,7 @@
     "@vue/cli-service": "^3.4.0",
     "@vue/test-utils": "^1.0.0-beta.20",
     "chai": "^4.1.2",
+    "codemirror": "^5.44.0",
     "commitlint": "^7.3.2",
     "lint-staged": "^8.1.0",
     "markdown-it-container": "^2.0.0",
@@ -69,12 +70,11 @@
     "sass-loader": "^7.0.1",
     "typescript": "^3.0.0",
     "vue": "^2.6.6",
-    "vue-class-component": "^6.0.0",
+    "vue-class-component": "^7.0.1",
     "vue-markdown-loader": "^2.4.1",
     "vue-property-decorator": "^7.0.0",
     "vue-router": "^3.0.2",
     "vue-template-compiler": "^2.6.6",
-    "codemirror": "^5.44.0",
     "vuep": "^0.8.1"
   }
 }

yarn.lock

@@ -8288,14 +8288,15 @@ vm-browserify@0.0.4:
   dependencies:
     indexof "0.0.1"
 
-vue-class-component@^6.0.0:
-  version "6.3.2"
-  resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-6.3.2.tgz#e6037e84d1df2af3bde4f455e50ca1b9eec02be6"
-
 vue-class-component@^6.2.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-6.3.0.tgz#32c3a3302d4a047f9750a9d1f2cc56823b899294"
 
+vue-class-component@^7.0.1:
+  version "7.0.1"
+  resolved "http://registry.npm.taobao.org/vue-class-component/download/vue-class-component-7.0.1.tgz#7af2225c600667c7042b60712eefdf41dfc6de63"
+  integrity sha1-evIiXGAGZ8cEK2BxLu/fQd/G3mM=
+
 vue-hot-reload-api@^2.3.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/vue-hot-reload-api/-/vue-hot-reload-api-2.3.1.tgz#b2d3d95402a811602380783ea4f566eb875569a2"