Changes to GET /v1/posts/posting-time-insights

added the enum value MATOMO to the property items/ of the query request parameter channels

added the enum value PLAUSIBLE to the property items/ of the query request parameter channels

added the enum value WEBSITE to the property items/ of the query request parameter channels

added the enum value YEXT to the property items/ of the query request parameter channels

added the enum value CANTO to the property items/ of the query request parameter channels

endpoint added