Creating deployment pipeline for hotfixes

Hi guys,

having a bit of trouble wrapping my head around this issue. We are using Gitflow branching and want to be able to push hotfixes to a staging environment to test before merging back into master and pushing to production  

so in my VCS for my build steps i specify the develop branch and  +:refs/heads/hotfix/(*) which outputs the following 

what i then want to do is take the artifacts from the most recent build and promote that to a staging environment.

Any ideas how i would do this or am i way off in what i want to achieve?

Thanks in advance,

Martin