(discussion) replace "reno" by "conventional-commits"

At work we use "commitizen" to generate our changelog, and this required to write commits using "conventional-commits". We loose the ability to "edit" slugs like reno allows us to do, but this makes life simpler. We actually always have to manually edit the release notes, to change some typo, add some intro, ...

If you have better idea on how to generate meaningful release notes ("what changed, what has been fixed, what has been broken"), feel free to use this ticket.