Change to an open-source friendly license to permit Linux distro packaging

[jonathanspw]

Currently DragonflyDB cannot be packaged into most Linux distributions because of the license in use.

I was planning to package it for Fedora/EPEL but that was shot down by the legal team based on the license.

https://gitlab.com/fedora/legal/fedora-license-data/-/issues/55#note_1059203371