Failed/Cancelled release does not contain tags

[20k-ultra]

The action uses --release-tag flag from the balena CLI which only sets tags if the release build completes. It would be useful to have tags added to failed or cancelled releases so we can see which release is from what commit by the action.

This issue is even more common if the github action is stopped which #24 mentions that the kill signal doesn't reach the CLI and stop the build so you could even get a completed build with no tags.

[20k-ultra]

I think the biggest hurdle in solving this issue is that the build action won't return a release ID if we cancel or the build fails so the action has no way to know the release id it needs to add the tags to.

[20k-ultra]

@thgreasi what do you think ?