fix: upgrade mysql2 from 3.11.1 to 3.11.3

Snyk has created this PR to upgrade mysql2 from 3.11.1 to 3.11.3.

See this package in npm:
mysql2

See this project in Snyk:
https://app.snyk.io/org/saileshbro/project/7f8ea6b6-76c7-4aaf-9e10-9e18af7009a4?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -30,7 +30,7 @@
     "express": "^4.21.1",
     "express-validator": "^7.2.0",
     "jsonwebtoken": "^9.0.2",
-    "mysql2": "^3.11.1",
+    "mysql2": "^3.11.3",
     "util": "^0.12.5",
     "validator": "^13.12.0"
   },