chore(deps): bump mysql2 from 3.15.3 to 3.16.0 in /reference-apps/nodejs (#90)

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 3.15.3 to 3.16.0.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](sidorares/node-mysql2@v3.15.3...v3.16.0)

---
updated-dependencies:
- dependency-name: mysql2
  dependency-version: 3.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

reference-apps/nodejs/package-lock.json

@@ -30,7 +30,7 @@
     "express-rate-limit": "^8.2.1",
     "helmet": "^8.1.0",
     "mongodb": "^7.0.0",
-    "mysql2": "^3.6.5",
+    "mysql2": "^3.16.0",
     "node-vault": "^0.10.2",
     "pg": "^8.11.3",
     "prom-client": "^15.1.0",