Bump mysql2 from 3.3.3 to 3.3.4

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 3.3.3 to 3.3.4.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](https://github.com/sidorares/node-mysql2/compare/v3.3.3...v3.3.4)

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

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

yarn.lock

@@ -1105,10 +1105,10 @@ ms@2.1.3, ms@^2.0.0, ms@^2.1.1:
   resolved "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz"
   integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
-mysql2@^3.3.3:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/mysql2/-/mysql2-3.3.3.tgz#b1010dffa394edf5c397c52bc340dfd3ada80257"
-  integrity sha512-MxDQJztArk4JFX1PKVjDhIXRzAmVJfuqZrVU+my6NeYBAA/XZRaDw5q7vga8TNvgyy3Lv3rivBFBBuJFbsdjaw==
+mysql2@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/mysql2/-/mysql2-3.3.4.tgz#b4168cac5e4dafb398734ff52ea008f1cea6e9f5"
+  integrity sha512-66K70s503WCweXmC8rKZ6oFpo+1qd96bx1QloaoYcSABwxvDzjGlqAHSxiDoXgBIv6YSTSZd6lvgWteYhBz7WA==
   dependencies:
     denque "^2.1.0"
     generate-function "^2.3.1"