Replace docker-completion with docker completion

[halilim]

The formula docker-completion uses docker/cli/contrib/completion/zsh/_docker, which is based on felixr/docker-zsh-completion, which is deprecated and archived. Docker can now generate completions with the completion command.

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[chenrui333]

The formula docker-completion uses docker/cli/contrib/completion/zsh/_docker, which is based on felixr/docker-zsh-completion,

https://github.com/felixr/docker-zsh-completion was archived long time ago, while https://github.com/docker/cli/commits/master/contrib/completion/zsh/_docker is still maintained? (what is the issue to be addressed in here?)

[halilim]

@chenrui333 interesting, I assumed it's not maintained since it's missing some features compared to docker completion zsh --help, sorry. E.g., docker compose <tab> brings up nothing, while the new one lists compose subcommands.

[chenrui333]

@chenrui333 interesting, I assumed it's not maintained since it's missing some features compared to docker completion zsh --help, sorry. E.g., docker compose <tab> brings up nothing, while the new one lists compose subcommands.

can you file an upstream issue for it? maybe we can go from there.

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