Update cookbook on Supermarket

[salsa-dev]

Hi! Thanks for all your work!

Could you, please, update the cookbook https://supermarket.chef.io/cookbooks/prometheus ?!

[nikitasobolevsky]

Imho this cookbook is abandoned. Maybe anybody knows working alternatives?

[salsa-dev]

@nikitasobolevsky have a look at my work https://gitlab.com/skif-software/chef/prometheus-cookbook/commits/devel

[mburns]

@elijah feel like adding another contributor or two to the Chef Supermarket? I'd be happy to upload versions we cut on git, but I lack the perms...