Add ability to look up the latest docker-compose version from Github API

[robinreinhardt]

This small changes add the ability to get the latest docker-compose version from Github API when docker_compose_version is "latest"

[stale[bot]]

This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark pull requests as stale.

[stale[bot]]

This pull request has been closed due to inactivity. If you feel this is in error, please reopen the pull request or file a new PR with the relevant details.

[geerlingguy]

I like this.

[stale[bot]]

This pull request is no longer marked for closure.

[stale[bot]]

This issue is no longer marked for closure.

[stale[bot]]

This pull request is no longer marked for closure.

[jorianvo]

Please be aware that this code is now broken due to the release of compose v2 i.e. when you now try to get the latest release you'll receive a 404. This is due to the fact that in compose v2 the assets are renamed from e.g. docker-compose-Linux-x86_64 to docker-compose-linux-amd64.

[geerlingguy]

Hmm... is there an easy way to work around that?

[robinreinhardt]

Unfortunately I guess this can not be solved easily. The download link structure is really messed up across the versions. Here what I got so far:

version 1: version number without "v", Linux, x86_64 version 2.0.0: version with "v", linux, amd64 since version 2.0.1: version with "v", linux, x86_64

That's why it's not possible to downgrade the version from 2 to 1 like mentioned on #378

Gladly report if someone can create a logic for this link structure.

Perhaps we should consider deprecating compose version 1 in this role.