chore(deps-dev): bump black from 21.11b1 to 21.12b0

Bumps [black](https://github.com/psf/black) from 21.11b1 to 21.12b0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/commits)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:development
...

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

Author: dependabot[bot]

poetry.lock

@@ -39,7 +39,7 @@ colorama = {version = "*", markers = 'sys_platform == "win32"'}
 image = ["Pillow"]
 
 [tool.poetry.dev-dependencies]
-black = "^21.11b1"
+black = "^21.12b0"
 pytest = "^6.2.5"
 pytest-minecraft = "^0.1.1"
 isort = "^5.10.1"