fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ELLIPTIC-8720086
- https://snyk.io/vuln/SNYK-JS-SERIALIZEJAVASCRIPT-6147607

Author: snyk-bot

package.json

@@ -49,7 +49,7 @@
         "vuex-persistedstate": "^2.5.4",
         "vuex-shared-mutations": "^1.0.2",
         "webfonts-loader": "^5.1.1",
-        "webpack": "^4.8.1",
+        "webpack": "^5.98.0",
         "webpack-cli": "^3.3.10"
     },
     "scripts": {