Support git repository contexts with `podman_image` build

[bmenant]

/kind feature

Description

Being able to use a git repository as a path (build context) when building images.

https://docs.podman.io/en/latest/markdown/podman-build.1.html#building-an-image-using-a-git-repository

- containers.podman.podman_image:
    name: my-image
    path: "[email protected]:bmenant/repo-with-containerfile.git"
    state: build