Support annotations option

[favonia]

Description

(I am creating a new issue because the focus of the old issue #854 is unclear.)

I wish build-push-action can support annotations just like labels, once the new --annotation shortcut (docker/buildx#2020) is officially available. Essentially, the script should append a new parameter --annotation "line" for each line in the value of annotations, just like how it appends a new --label "line" now for each line in the value of labels.

[crazy-max]

--annotation flag PR has just been merged on buildx repo docker/buildx#2020 and will be available on next 0.12 release. We could then add a new input for this action as follow-up. (cc @jedevc)

[jedevc]

@crazy-max sgtm 🎉 I think the release of v0.12 should be scheduled for fairly soon?

[crazy-max]

I think the release of v0.12 should be scheduled for fairly soon?

Yes maybe an RC next week 🤞