Bump sanic from 20.12.6 to 20.12.7 in /test/dockerfiles/condor

Bumps [sanic](https://github.com/sanic-org/sanic) from 20.12.6 to 20.12.7.
- [Release notes](https://github.com/sanic-org/sanic/releases)
- [Changelog](https://github.com/sanic-org/sanic/blob/main/CHANGELOG.rst)
- [Commits](sanic-org/sanic@v20.12.6...v20.12.7)

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

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

test/dockerfiles/condor/requirements.txt

@@ -16,7 +16,7 @@ pymongo==3.8.0
 requests==2.22.0
 requests-async==0.5.0
 rfc3986==1.3.2
-sanic==20.12.6
+sanic==20.12.7
 ujson==5.2.0
 urllib3==1.26.5
 uvloop==0.12.2