Dont link to build log if package is in state broken in staging workflow

Linking to the live build log when a package is in state broken
doesn't help, since it's the source of the package which causes
the problem and the build log won't show useful infos.

Fixes #7394

src/api/app/views/webui/staging/workflows/_build_problems.html.haml

@@ -6,7 +6,7 @@
       - values.each do |value|
         - coma = ', ' unless values.last == value
         = succeed coma do
-          - if state == 'unresolvable'
+          - if ['unresolvable', 'broken'].include?(state)
             = value[:arch]
           - else
             = link_to(value[:arch], package_live_build_log_path(package: name,