Allow CI/CD Jobs being grouped on version strings

This makes grouping on version number available. In general I'd like to
group based on MAJOR.MINOR version numbers for Gitaly.

app/models/commit_status.rb

@@ -141,7 +141,7 @@ class CommitStatus < ActiveRecord::Base
   end
 
   def group_name
-    name.to_s.gsub(%r{\d+[\s:/\\]+\d+\s*}, '').strip
+    name.to_s.gsub(%r{\d+[\.\s:/\\]+\d+\s*}, '').strip
   end
 
   def failed_but_allowed?

changelogs/unreleased/zj-version-string-grouping-ci.yml

@@ -0,0 +1,5 @@
+---
+title: Allow CI/CD Jobs being grouped on version strings
+merge_request:
+author:
+type: added

spec/models/commit_status_spec.rb

@@ -368,7 +368,9 @@ describe CommitStatus do
       'rspec:windows 0 : / 1' => 'rspec:windows',
       'rspec:windows 0 : / 1 name' => 'rspec:windows name',
       '0 1 name ruby' => 'name ruby',
-      '0 :/ 1 name ruby' => 'name ruby'
+      '0 :/ 1 name ruby' => 'name ruby',
+      'golang test 1.8' => 'golang test',
+      '1.9 golang test' => 'golang test'
     }
 
     tests.each do |name, group_name|