Add support for page labels.

https://developer.atlassian.com/cloud/confluence/rest/v1/api-group-content-labels/#api-wiki-rest-api-content-id-label-get
allenmanning
2023-02-23T09:08:39Z
allenmanning
enhancement publishing-confluence
Future
open
[Confluence] Labels Support
https://github.com/quarto-dev/quarto-cli/issues/4478