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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-JSYAML-13961110

Author: snyk-bot

package-lock.json

@@ -80,7 +80,7 @@
     "express": "^4.21.2",
     "express-prom-bundle": "^5.1.5",
     "global-agent": "^3.0.0",
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.1.1",
     "jsonwebtoken": "^9.0.2",
     "lodash.escaperegexp": "^4.1.2",
     "lodash.mapvalues": "^4.6.0",