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/ccn-api-ref.yaml

@@ -4,7 +4,7 @@ hc_location: api/cc
 html_location: docs/ccn/api-ref
 link: /cloud-connect/api-ref/
 pdf_enabled: true
-pdf_environment: internal
+pdf_environment: public
 rst_location: api-ref/source
 service_type: ccn
 title: API Reference