Pulling box support articles in ServiceNow

I want to pull in box support articles into ServiceNow instance.

Example of external knowledge article - https://support.box.com/hc/en-us/articles/360044196273-Managing-Collaborators

ServiecNow provides a feature to pull such articles using 'External Knowledge Source' functionality and basically attach these external articles as pdf to auto created KB article in ServiceNow.

I have done the configuration as per ServiceNow documentations –

https://docs.servicenow.com/bundle/rome-servicenow-platform/page/product/knowledge-management/concept/knowledge-external-content-integration.html

https://docs.servicenow.com/bundle/rome-servicenow-platform/page/product/knowledge-management/concept/sample-ext-cont-integration.html#sample-ext-cont-integration

This doc states that the external source should be WebDAV- compliant.

As per one box support article, Box no longer supports 'WebDAV ' - https://support.box.com/hc/en-us/articles/360043696414-WebDAV-with-Box

When I run the job on the newly created source in ServiceNowm I get below error "Error - org.apache.jackrabbit.webdav.DavException: Method Not Allowed"

This feature that ServiceNow provide only utilizes WebDAV. Please let me know if there is way to get these articles in Servicenow