Changes to Get content changelog

the query request parameter category was restricted to a list of enum values

added the new enum value blog to the query request parameter category

added the new enum value caseStudies to the query request parameter category

added the new enum value changelog to the query request parameter category

added the new enum value comparison to the query request parameter category

added the new enum value docs to the query request parameter category

added the new enum value integrations to the query request parameter category

added the new enum value landing to the query request parameter category

added the new enum value legal to the query request parameter category

added the new enum value other to the query request parameter category

added the new enum value programmatic to the query request parameter category

added the new enum value tools to the query request parameter category

added the new enum value webinars to the query request parameter category

for the path request parameter projectId, the type was generalized from no type to string

added the new api_key_expired enum value to the error/code response property for the response status 401

added the new api_key_invalid enum value to the error/code response property for the response status 401

added the new api_key_missing enum value to the error/code response property for the response status 401

added the new api_key_revoked enum value to the error/code response property for the response status 401

added the new insufficient_scope enum value to the error/code response property for the response status 401

added the new optional query request parameter allUrlsPerCategory

added the required property truncated to the response with the 200 status