Enable host.docker.internal to be working in Linux

[wey-gu]

This works fine in macOS Docker Desktop, but not in Linux Docker Engine by default, due to not being resolvable, this is the mitigation to make it work in both cases, while the limitation is it has to be in docker-engine version v20.10 or newer.

ref https://stackoverflow.com/questions/48546124/what-is-linux-equivalent-of-host-docker-internal/67158212#67158212