docker: re-add support for legacy commands

[rsteube]

fix #2255

[rsteube]

fyi @giggio

Let's give this another try. I primarily removed the support due to the previous approach giving me some issues.
This should be fine and maintainable.

[giggio]

@rsteube that is awesome. Is there a way to install using Go? I tried go install github.com/rsteube/carapace-bin@master but it failed with

go: downloading github.com/rsteube/carapace-bin v0.30.2-0.20240221100749-f038a18f0524
go: github.com/rsteube/carapace-bin@master: module github.com/rsteube/carapace-bin@master found (v0.30.2-0.20240221100749-f038a18f0524), but does not contain package github.com/rsteube/carapace-bin

[giggio]

Nevermind, I looked at the github workflow and built it by cloning and building. I added it to a local bin folder and it is working. I'll remove it when you release a new version. Thanks!

For reference:

git clone https://github.com/rsteube/carapace-bin.git
cd carapace-bin
go generate ./cmd/...
ls cmd/ | xargs -I'{}' sh -c "cd ./cmd/{} && go build -v ."