fix(cdn): generate docs

Author: cgoetz-inovex

docs/stackit_config_set.md

@@ -31,6 +31,7 @@ stackit config set [flags]
 ```
       --allowed-url-domain string                                  Domain name, used for the verification of the URLs that are given in the custom identity provider endpoint and "STACKIT curl" command
       --authorization-custom-endpoint string                       Authorization API base URL, used in calls to this API
+      --cdn-custom-endpoint string                                 CDN API base URL, used in calls to this API
       --dns-custom-endpoint string                                 DNS API base URL, used in calls to this API
   -h, --help                                                       Help for "stackit config set"
       --iaas-custom-endpoint string                                IaaS API base URL, used in calls to this API

docs/stackit_config_unset.md

@@ -29,6 +29,7 @@ stackit config unset [flags]
       --allowed-url-domain                                  Domain name, used for the verification of the URLs that are given in the IDP endpoint and curl commands. If unset, defaults to stackit.cloud
       --async                                               Configuration option to run commands asynchronously
       --authorization-custom-endpoint                       Authorization API base URL. If unset, uses the default base URL
+      --cdn-custom-endpoint                                 Custom CDN endpoint URL. If unset, uses the default base URL
       --dns-custom-endpoint                                 DNS API base URL. If unset, uses the default base URL
   -h, --help                                                Help for "stackit config unset"
       --iaas-custom-endpoint                                IaaS API base URL. If unset, uses the default base URL