fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-YARGSPARSER-560381

package.json

@@ -50,7 +50,7 @@
     "vuefire": "^2.2.1",
     "vuejs-auto-complete": "^0.9.0",
     "vuex-persist": "^2.2.0",
-    "yargs-parser": "^18.1.0"
+    "yargs-parser": "^18.1.1"
   },
   "devDependencies": {
     "cypress": "^4.1.0",