fix: covid-vue-app/package.json & covid-vue-app/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-VUETIFY-10259821

Author: snyk-bot

covid-vue-app/package-lock.json

@@ -41,7 +41,7 @@
     "selenium-webdriver": "^3.6.0",
     "vue": "^2.6.10",
     "vue-router": "^3.5.2",
-    "vuetify": "^2.4.9"
+    "vuetify": "^3.0.0"
   },
   "devDependencies": {
     "@babel/preset-env": "^7.15.6",