Bump mysql2 from 3.6.5 to 3.7.0

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 3.6.5 to 3.7.0.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](sidorares/node-mysql2@v3.6.5...v3.7.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -59,7 +59,7 @@
     "ethereumjs-util": "^7.1.5",
     "hcaptcha": "^0.1.1",
     "html-entities": "^2.4.0",
-    "mysql2": "^3.6.5",
+    "mysql2": "^3.7.0",
     "node-fetch": "^3.3.2",
     "randombytes": "^2.1.0",
     "tiny-typed-emitter": "^2.1.0",