cirrus: Implement a YAML control file for Cirrus
cirrus: Implement a YAML control file for Cirrus

Fixes #3255

occivink/kakoune,casimir/kakoune,danr/kakoune,Somasis/kakoune,lenormf/kakoune,Somasis/kakoune,casimir/kakoune,jkonecny12/kakoune,danr/kakoune,Somasis/kakoune,jkonecny12/kakoune,Somasis/kakoune,jkonecny12/kakoune,mawww/kakoune,occivink/kakoune,occivink/kakoune,danr/kakoune,occivink/kakoune,jkonecny12/kakoune,mawww/kakoune,alexherbo2/kakoune,mawww/kakoune,lenormf/kakoune,casimir/kakoune,lenormf/kakoune,alexherbo2/kakoune,alexherbo2/kakoune,alexherbo2/kakoune,casimir/kakoune,mawww/kakoune,danr/kakoune,lenormf/kakoune