Bump mysqlclient from 2.1.0 to 2.1.1

Bumps [mysqlclient](https://github.com/PyMySQL/mysqlclient) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/PyMySQL/mysqlclient/releases)
- [Changelog](https://github.com/PyMySQL/mysqlclient/blob/main/HISTORY.rst)
- [Commits](PyMySQL/mysqlclient@v2.1.0...v2.1.1)

---
updated-dependencies:
- dependency-name: mysqlclient
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

poetry.lock

@@ -78,7 +78,7 @@ sphinx_rtd_theme = "^1.0.0"
 lockfile = "^0.12.2"
 recommonmark = "^0.7.1"
 psycopg2 = {version = "=2.9.3", python = "3.6.* || 3.7.* || 3.8.* || 3.9.*"}
-mysqlclient = {version = "=2.1.0", python = "^3.6"}
+mysqlclient = {version = "=2.1.1", python = "^3.6"}
 tox = "^3.25"
 mypy = {version = "^0.961", python = "^3.6"}
 django-stubs = {version = "^1.9", python = "^3.6"}