chore(deps): bump aiomysql from 0.2.0 to 0.3.0

Bumps [aiomysql](https://github.com/aio-libs/aiomysql) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/aio-libs/aiomysql/releases)
- [Changelog](https://github.com/aio-libs/aiomysql/blob/main/CHANGES.txt)
- [Commits](https://github.com/aio-libs/aiomysql/commits)

---
updated-dependencies:
- dependency-name: aiomysql
  dependency-version: 0.3.0
  dependency-type: indirect
...

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Author: dependabot[bot]