codegen: Remove yanked crate

[NobodyXu]

In the cronjob, we could check for yanked crates and remove them from this action.

[taiki-e]

While yanked versions should not be selected in the latest and omitted versions (this is already implemented), I don't think they should be disallowed from being used when explicitly specified. As far as I know, cargo is also moving in that direction: rust-lang/cargo#13974

[NobodyXu]

Thanks, yeah I can understand that decision.

In that case, how about storing the yanked information in manifest, and then default to skip the yanked version, while allowing user to override that behavior?

[taiki-e]

default to skip the yanked version

Unless you explicitly specify the full version (tool: <tool>@<major>.<minor>.<patch>), this is already the default.

[taiki-e]

I think it is good to warn if the yanked version is explicitly selected, but I don't think we should change the version on our own.

[NobodyXu]

Thank you!