CI: activate azure pipelines/github actions on 1.3.x
This is milestoned 1.4 since the config is on master. (and we don't want the autobackport) 
i'll merge this now. so that if we need to do any other backports to 1.3.x we can confirm the ci status @meeseeksdev backport 1.3.x > This is milestoned 1.4 since the config is on master. (and we don't want the autobackport)

looks not to be the case.