Deprecate Chef12

[jmadureira]

No point in supporting this Chef version.

[nictrix]

If this will be a major breaking change to the cookbook, might as well take care of removing the other depreciation items:

https://github.com/jmadureira/netdata-cookbook/blob/master/recipes/install_netdata.rb#L19 https://github.com/jmadureira/netdata-cookbook/blob/master/recipes/default.rb https://github.com/jmadureira/netdata-cookbook/blob/master/attributes/default.rb#L1 https://github.com/jmadureira/netdata-cookbook/blob/master/resources/bind_rndc_conf.rb#L30 https://github.com/jmadureira/netdata-cookbook/blob/master/resources/netdata_install.rb#L42 https://github.com/jmadureira/netdata-cookbook/blob/master/resources/netdata_install.rb#L48 https://github.com/jmadureira/netdata-cookbook/blob/master/resources/nginx_conf.rb#L30

You can probably remove this from metadata: depends 'compat_resource', '~> 12.19.1' and you may be able to remove apt as a dependency https://github.com/chef-cookbooks/apt#resources

[jmadureira]

This is a WIP for a 1.0.0 release. Still a lot of cleaning up to do.