Add mapping for Marketing SIG

New badge for marketing members has been pushed and set up.
See: https://pagure.io/fedora-badges/issue/833

roles/badges/backend/files/cron/award-oldschool-badges

@@ -106,6 +106,7 @@ def main():
         'irc-support-operators':
         'your-call-may-be-monitored-for-quality-assurance',
         'lxqt-sig': 'lxqt-sig-member',
+        'marketing': 'called-to-action',
         'mindshare': 'meeting-of-the-minds',
         'modularity-wg': 'modularity-wg-member',
         'neuro-sig': 'neurofedora-sig-member',