don't preview zip files as plain text

5 jobs for fix-no-preview-zip in 42 minutes and 16 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #30056
docker
build-docs_job

00:02:05

passed #30055
docker
galaxy_job

00:33:54

passed #30054
docker
rest_job

00:10:55

passed #30052
docker
service_job

00:08:18

passed #30053
docker
ui_job

00:21:45