[FEATURE] Consider removing upper bound for dependencies

[Viicos]

• I've searched the issues
• I've read the docs

Feature Request

Adding upper bounds to dependencies is generally considered a bad practice, as most of the time new "major" versions will not introduce any breaking changes. A couple reasons to not add these upper bounds:

• each time a new "major" version is out, dependencies need to be updated. I see this is already being handled, but might not be in the future if the project lacks maintenance for some time.
• If this isn't handled, users of djlint are bound to versions they don't control. Say I want to use a feature in html-tag-names>=0.2.0 inside my virtualenv where djlint is installed, I'd have to open a PR on this repo to loosen the dependency on html-tag-names (which currently is >=0.1.2,<0.2.0), and there're probably no breaking changes for this version bump.

This lengthy article goes into more details.

If you are ok with this, I can open a PR.