fix(deps): update dependency vue-class-component to v7 (#56)

Author: renovate[bot]

package.json

@@ -58,7 +58,7 @@
   },
   "dependencies": {
     "vue": "^2.5.17",
-    "vue-class-component": "^6.2.0",
+    "vue-class-component": "^7.0.0",
     "vue-hot-reload-api": "^2.3.1",
     "vue-property-decorator": "^7.2.0"
   },

yarn.lock

@@ -8075,6 +8075,11 @@ vue-class-component@^6.2.0:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-6.2.0.tgz#7adb1daa9a868c75f30f97f33f4f1b94aee62089"
 
+vue-class-component@^7.0.0:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-7.0.1.tgz#7af2225c600667c7042b60712eefdf41dfc6de63"
+  integrity sha512-YIihdl7YmceEOjSwcxLhCXCNA3TKC2FStuMcjtuzhUAgw5x5d1T5gZTmVQHGyOaQsaKffL4GlZzYN3dlMYl53w==
+
 vue-hot-reload-api@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/vue-hot-reload-api/-/vue-hot-reload-api-2.3.1.tgz#b2d3d95402a811602380783ea4f566eb875569a2"