Bump mysql2 from 2.2.5 to 3.9.4 in /generators/node-server/resources

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 2.2.5 to 3.9.4.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](sidorares/node-mysql2@v2.2.5...v3.9.4)

---
updated-dependencies:
- dependency-name: mysql2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

generators/node-server/resources/package.json

@@ -19,7 +19,7 @@
     "js-yaml": "4.1.0",
     "jwt-decode": "3.1.1",
     "mongodb": "6.2.0",
-    "mysql2": "2.2.5",
+    "mysql2": "3.9.4",
     "pg": "8.4.2",
     "oracledb": "5.0.0",
     "mssql": "6.2.3",