fix: client/package.json & client/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANSIHTML-1296849
- https://snyk.io/vuln/SNYK-JS-ANSIREGEX-1583908
- https://snyk.io/vuln/SNYK-JS-HTMLMINIFIER-3091181
- https://snyk.io/vuln/SNYK-JS-LODASHTEMPLATE-1088054
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2330875
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2331908
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430337
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430339
- https://snyk.io/vuln/SNYK-JS-NODEFORGE-2430341
- https://snyk.io/vuln/SNYK-JS-POSTCSS-5926692
- https://snyk.io/vuln/SNYK-JS-REQUEST-3361831
- https://snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873
- https://snyk.io/vuln/SNYK-JS-UGLIFYJS-1727251
- https://snyk.io/vuln/SNYK-JS-UNSETVALUE-2400660

client/package.json

@@ -8,7 +8,7 @@
     "http-proxy-middleware": "^0.19.1",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
-    "react-scripts": "3.0.1"
+    "react-scripts": "5.0.0"
   },
   "scripts": {
     "start": "react-scripts start",