QUIC: participate in interop runner

[larseggert]

It would be great if ATS created a docker image for the QUIC Interop Runner. See https://github.com/marten-seemann/quic-interop-runner/blob/master/README.md

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.

[maskit]

We started using Quiche.