Bump mysql2 from 0.5.1 to 0.5.2
Bump mysql2 from 0.5.1 to 0.5.2

Bumps [mysql2](https://github.com/brianmario/mysql2) from 0.5.1 to 0.5.2.
- [Release notes](https://github.com/brianmario/mysql2/releases)
- [Changelog](https://github.com/brianmario/mysql2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianmario/mysql2/compare/0.5.1...0.5.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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