[RFC]: Adopt Conventional Commits about nelmioapidocbundle

[DjordyKoert]

Looking really good and I am really in favor of adding this. 😄 🎉

sticky-pull-request-comment

Adding a comment does not feel necessary in my opinion. The failing action-semantic-pull-request action in combination with a proper contributing guideline should be enough information to help guide a contributor to fixing their PR.

The available list of types is currently based on commitizen/conventional-commit-types but can be freely configured

I don't see a reason to differ from the default. :)

The available list of scopes is currently unrestricted, could be configured to specifically enforcing mentioning one (ore more) GitHub issues with a #1234 syntax or any other string pattern that can be checked by a regex

I don't think we have to enforce creating an issue before creating a PR at this current time.

Casing of the subject, e.g. has to start with an uppercase or lowercase character

Let's use lowercase (the default)