Bump mysql2 from 3.6.1 to 3.9.7 (#207)

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 3.6.1 to 3.9.7.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](sidorares/node-mysql2@v3.6.1...v3.9.7)

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

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package.json

@@ -87,7 +87,7 @@
     "luhn-generator": "0.6.0",
     "memoized-class-decorator": "1.6.1",
     "memoizee": "0.4.15",
-    "mysql2": "3.6.1",
+    "mysql2": "3.9.7",
     "mysqldump": "3.2.0",
     "pino": "8.16.1",
     "pino-pretty": "10.2.0",