Merge branch 'jv-fix-workhorse-attributes' into 'master'

Fix workhorse testdata PDF LFS issue

See merge request gitlab-org/gitlab!49021

.gitattributes

@@ -2,3 +2,4 @@ VERSION merge=ours
 Dangerfile gitlab-language=ruby
 *.pdf filter=lfs diff=lfs merge=lfs -text
 *.rb diff=ruby
+workhorse/testdata/*.pdf -filter -diff -merge