Bump aiomysql from 0.0.21 to 0.0.22

Bumps [aiomysql](https://github.com/aio-libs/aiomysql) from 0.0.21 to 0.0.22.
- [Release notes](https://github.com/aio-libs/aiomysql/releases)
- [Changelog](https://github.com/aio-libs/aiomysql/blob/master/CHANGES.txt)
- [Commits](https://github.com/aio-libs/aiomysql/commits)

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

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

pyproject.toml

@@ -47,7 +47,7 @@ pydantic = ">=1.6.1,!=1.7,!=1.7.1,!=1.7.2,!=1.7.3,!=1.8,!=1.8.1,<=1.8.2"
 SQLAlchemy = ">=1.3.18,<1.4.28"
 asyncpg = { version = "^0.24.0", optional = true }
 psycopg2-binary = { version = "^2.9.1", optional = true }
-aiomysql = { version = "^0.0.21", optional = true }
+aiomysql = { version = ">=0.0.21,<0.0.23", optional = true }
 aiosqlite = { version = "^0.17.0", optional = true }
 cryptography = { version = "^35.0.0", optional = true }
 
@@ -67,7 +67,7 @@ python = "<3.8"
 
 [tool.poetry.dev-dependencies]
 # Async database driversy
-aiomysql = "^0.0.21"
+aiomysql = ">=0.0.21,<0.0.23"
 aiosqlite = "^0.17.0"
 aiopg = "^1.3.3"
 asyncpg = "^0.24.0"