tests: handle multiple docker versions
- ~needs https://github.com/moby/buildkit/pull/4736~
@tonistiigi As discussed we could also handle builders through docker context with specific dind image as follow-up.
These seem relevant to this pr: https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L442-L443 https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L576-L577 https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L643-L644
These seem relevant to this pr:
https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L442-L443
https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L576-L577
https://github.com/docker/buildx/blob/4327ee73b18949e47eb1c865daa262af095cf974/tests/build.go#L643-L644
WDYM? This PR is about testing multiple dockerd versions. For BuildKit see https://github.com/docker/buildx/pull/2322