fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-EXPRESS-7926867
- https://snyk.io/vuln/SNYK-JS-SERVESTATIC-7926865

package.json

@@ -72,7 +72,7 @@
     "@vue/babel-preset-app": "5.0.8",
     "@vue/cli-plugin-babel": "5.0.8",
     "@vue/cli-plugin-unit-jest": "5.0.8",
-    "@vue/cli-service": "4.5.19",
+    "@vue/cli-service": "5.0.1",
     "@vue/eslint-config-standard": "4.0.0",
     "@vue/test-utils": "1.3.0",
     "@wdio/allure-reporter": "7.19.7",