8.6.6

✨ New Features

• 352b9cb - element-template-generator: allow send tasks using connectors (#3827) (PR #3832 by @sbuettner)

🐛 Bug Fixes

• 396498d - mail-connector: check htmlBody and/or body is null and throw an error (PR #3796 by @itsnuyen)
• d5104d8 - mail-connector: fix test adapt to the recrod from 8.6 (commit by @itsnuyen)

🔧 Chores

• 6b37a69 - mail-connector: cherry pick assertTrue for validation of htmlbody and text body (commit by @itsnuyen)