Remove ruby 2.7.0 from build matrix
Remove ruby 2.7.0 from build matrix

centosadmin/redmine_intouch,centosadmin/redmine_intouch,centosadmin/redmine_intouch,olemskoi/redmine_intouch,centosadmin/redmine_intouch,olemskoi/redmine_intouch,olemskoi/redmine_intouch,olemskoi/redmine_intouch