[COOK-2877] - depend on the runit cookbook
[COOK-2877] - depend on the runit cookbook

Runit is the default init style for debian/ubuntu systems, so we need
to specify a dependency on it, otherwise, e.g., chef-solo won't load
the resources/providers and the runit_service will fail in the source
recipe. While one could use the init init_style attribute value, this
doesn't "just work" for most users.

chef-cookbooks/chef_nginx,chef-cookbooks/chef_nginx,kri5/nginx,zuazo-forks/opscode-cookbooks-nginx,newlywish/nginx,feedhenry-cookbooks/nginx,Sauraus/chef_nginx,auth0/chef-nginx,cokeboL/nginx,gansbrest/nginx,spulec/nginx_private,luishdez/nginx-cookbook,evertrue/nginx-cookbook,kri5/nginx,jharveysmith/nginx,Roblox/chef_nginx,luishdez/nginx-cookbook,miketheman/nginx,periscopedevelopment/nginx,whatcould/nginx,newlywish/nginx,sanguis/nginx,blmlove409/nginx_cookbook,auth0/chef-nginx,zuazo-forks/opscode-cookbooks-nginx,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,fsultan/nginx,AudaxHealthInc/nginx,AudaxHealthInc/nginx,Altiscale/nginx,AudaxHealthInc/nginx,Roblox/chef_nginx,ffuenf/nginx,channelgrabber/nginx,miketheman/nginx,cokeboL/nginx,luishdez/nginx-cookbook,fsultan/nginx,miketheman/nginx,Roblox/chef_nginx,cpbtechnology/nginx,Sauraus/chef_nginx,channelgrabber/nginx,jharveysmith/nginx,ttab/nginx,chef-cookbooks/chef_nginx,blmlove409/nginx_cookbook,8la/nginx,periscopedevelopment/nginx,cpbtechnology/nginx,axos88/chef_nginx,whatcould/nginx,newlywish/nginx,Altiscale/nginx,cpbtechnology/nginx,ffuenf/nginx,evertrue/nginx-cookbook,cokeboL/nginx,feedhenry-cookbooks/nginx,blmlove409/nginx_cookbook,ffuenf/nginx,periscopedevelopment/nginx,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,channelgrabber/nginx,fsultan/nginx,8la/nginx,gansbrest/nginx,8la/nginx,myplaceonline/nginx,ttab/nginx,Sauraus/chef_nginx,ttab/nginx,kri5/nginx,evertrue/nginx-cookbook,axos88/chef_nginx,myplaceonline/nginx,axos88/chef_nginx,Altiscale/nginx,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,gansbrest/nginx