As long as a milestone and the board have the same title, then this
workflow should take care of adding an issue into the GitHub Project
board when an existing issue is given a milestone.
It does NOT support checking for a milestone when an issue is edited or
created though, due to limitations on GitHub Actions syntax right now -
there's not a great way to validate against an empty `milestone` object
at the moment, per https://docs.github.com/en/free-pro-team@latest/actions/reference/context-and-expression-syntax-for-github-actions
Signed-off-by: Nolan Brubaker <brubakern@vmware.com>
Signed-off-by: Nolan Brubaker <brubakern@vmware.com>