COOK-1413, use sha256 checksum instead of md5
COOK-1413, use sha256 checksum instead of md5

ChrisLundquist/nagios,mconf-cookbooks/nagios,CanaryTek/nagios,schubergphilis/nagios,aaronkvanmeerten/nagios,earzur/nagios,Tealium/nagios,mattupstate/nagios,Piousbox-cookbooks/nagios,JulianNL/nagios,spudnic/nagios,spudnic/nagios,mconf-cookbooks/nagios,cookbooks/mc-nagios,ChrisLundquist/nagios,hnakamur/nagios,Tealium/nagios,JulianNL/nagios,firebase/nagios,schubergphilis/nagios,earzur/nagios,Tealium/nagios,mconf-cookbooks/nagios,Tealium/nagios,schubergphilis/nagios,bitmonk/chef-nagios,ovaistariq/nagios,Piousbox-cookbooks/nagios,polamjag/nagios,cookbooks/mc-nagios,caleb/nagios,polamjag/nagios,pierreozoux/nagios,bitmonk/chef-nagios,mrlamroger/nagios,mrlamroger/nagios,OpenGov/nagios,spudnic/nagios,jtimberman/nagios,mattupstate/nagios,CanaryTek/nagios,popsikle/nagios-5.3.5,cookbooks/mc-nagios,Tealium/nagios,Springest/nagios,OpenGov/nagios,caleb/nagios,aaronkvanmeerten/nagios,CanaryTek/nagios,Piousbox-cookbooks/nagios,polamjag/nagios,ovaistariq/nagios,JulianNL/nagios,firebase/nagios,firebase/nagios,mattupstate/nagios,cookbooks/oc-nagios,jtimberman/nagios,mrlamroger/nagios,OpenGov/nagios,ChrisLundquist/nagios,OpenGov/nagios,JulianNL/nagios,firebase/nagios,mrlamroger/nagios,jtimberman/nagios,popsikle/nagios-5.3.5,ovaistariq/nagios,earzur/nagios,lusis/nagios,Piousbox-cookbooks/nagios,cookbooks/oc-nagios,cookbooks/oc-nagios,aaronkvanmeerten/nagios,Tealium/nagios,bitmonk/chef-nagios,bitmonk/chef-nagios,spudnic/nagios