Change modal confirm to regenerate key button

ee/app/views/projects/mirrors/pull/_regenerate_public_ssh_key_confirm_modal.html.haml

@@ -10,4 +10,4 @@
         %p= _('Are you sure you want to regenerate the public key? You will have to update the public key on the remote server before mirroring will work again.')
       .form-actions.modal-footer
         = button_tag _('Cancel'), type: 'button', class: 'btn js-cancel'
-        = button_tag _('Confirm'), type: 'button', class: 'btn btn-danger js-confirm'
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+        = button_tag _('Regenerate key'), type: 'button', class: 'btn btn-inverted btn-warning js-confirm'
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