Rollout PDF to public

Reviewed-by: Tino Schreiber <tino.schreiber@t-systems.com>
Co-authored-by: Sebastian Gode <sebastian.gode@telekom.de>
Co-committed-by: Sebastian Gode <sebastian.gode@telekom.de>

otc_metadata/data/documents/csbs-umn.yaml

@@ -3,7 +3,7 @@ hc_location: usermanual/csbs
 html_location: docs/csbs/umn
 link: /cloud-server-backup-service/umn/
 pdf_enabled: true
-pdf_environment: internal
+pdf_environment: public
 rst_location: umn/source
 service_type: csbs
 title: User Guide