update dependencies

Author: aelbore

package.json

@@ -35,7 +35,7 @@
   "devDependencies": {
     "@types/koa-router": "^7.4.1",
     "@types/koa": "^2.11.3",
-    "@types/mocha": "^7.0.2",
+    "@types/mocha": "^8.0.0",
     "@vue/compiler-sfc": "^3.0.0-beta.20",
     "@vue/test-utils": "^2.0.0-alpha.8",
     "aria-build": "^0.4.5",