Support for wagtail 7.0 LTS

[happygrizzly]

Despite looking at the package internals many times, I'm not sure if it's a difficult decision to allow wagtail v7+ (at least 7.0/LTS) into the pyproject.toml? Can we have some estimate or milestone for this, granted it has troubles migrating ?

Disclaimer: I'm not sure if the Issues is the right place for such questions, I'd rather ask it in the Discussions. Yet, since we have 7 LTS, I think it might be legit.