Add Pajamas-complient badge for disabled mirror

Changelog: changed

app/views/projects/mirrors/_disabled_mirror_badge.html.haml

-.badge.badge-warning.qa-disabled-mirror-badge.rspec-disabled-mirror-badge{ data: { toggle: 'tooltip', html: 'true' }, title: _('Disabled mirrors can only be enabled by instance owners. It is recommended that you delete them.') }= _('Disabled')
+%span{data: { toggle: 'tooltip', html: 'true' }, title: _('Disabled mirrors can only be enabled by instance owners. It is recommended that you delete them.') }
+    = gl_badge_tag _('Disabled'), variant: :warning, class: 'qa-disabled-mirror-badge rspec-disabled-mirror-badge'