v7.5.13

Changelog

c985b8c Update CHANGELOG.md for v7.5.13
ea66b4f Update test database
188bec3 Merge pull request #661 from nyaruka/simpler_ivr
4fb511a Merge branch 'main' into simpler_ivr
9475c71 Merge pull request #660 from nyaruka/clog_uuids_v2
cb71f63 Rename channelconnection to call
fb71681 Create cla.yml
a5f7e17 Don't read or write connection_type
503d73e Update LICENSE
c0c6d3b Attach channel logs to channel connections