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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BODYPARSER-7926860
- https://snyk.io/vuln/SNYK-JS-EXPRESS-7926867
- https://snyk.io/vuln/SNYK-JS-SEND-7926862
- https://snyk.io/vuln/SNYK-JS-SERVESTATIC-7926865

package.json

@@ -18,15 +18,15 @@
   "dependencies": {
     "@sentry/node": "5.7.0",
     "axios": "^0.27.2",
-    "body-parser": "^1.18.3",
+    "body-parser": "^1.20.3",
     "bootstrap": "^4.3.1",
     "bootstrap-vue": "^2.21.2",
     "bs58": "^4.0.1",
     "co": "^4.6.0",
     "crypto-js": "^3.1.9-1",
     "debug": "^4.1.0",
     "dotenv": "^8.0.0",
-    "express": "^4.16.4",
+    "express": "^4.21.0",
     "express-winston": "^3.0.1",
     "joi": "^14.3.0",
     "jquery": "^3.4.1",