Bump sanic from 21.6 to 21.12.2

Bumps [sanic](https://github.com/sanic-org/sanic) from 21.6 to 21.12.2.
- [Release notes](https://github.com/sanic-org/sanic/releases)
- [Changelog](https://github.com/sanic-org/sanic/blob/main/CHANGELOG.rst)
- [Commits](sanic-org/sanic@v21.6.0...v21.12.2)

---
updated-dependencies:
- dependency-name: sanic
  dependency-type: direct:production
...

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

requirements.txt

@@ -5,6 +5,6 @@ ora
 pyyaml
 requests
 rich
-sanic ==21.6
+sanic ==21.12.2
 sqlalchemy <2
 ujson