Merge pull request #696 from rapidpro/upmerge

Upmerge from Nyaruka

 * Retry messages which fail to queue to courier

 * Update deps including new goflow which adds legacy_vars issues

 * Fix test and cleanup msg status constants
 * Add basic auth for Elastic

 * Test with only redis 6.2

 * Don't filter labels by label_type which is being removed

 * Send msg id to fetch-attachments endpoint and clean up flows.MsgID…

… vs models.MsgID

 * Revert "Remove rocketchat as ticketer"
 * Don't include unavailable attachments in flows but do save them

 * Set server idle timeout to 90 seconds

 * Test against redis 6.2 and postgres 14

 * Add workaround to contact resolve endpoint to deal with invalid ph…

…one numbers

 * Update to latest gocommon and goflow

 * Remove rocketchat as ticketer

 * Update deps

 * Remove legacy functionality to look for missed call trigger if the…

…re's no incoming call trigger