Allow/relax upper bound on packaging dependency #1435
Description
The current requirement on packaging is pinned:
Line 43 in e1aa921
With the release of packaging 22.0, clients using the current release of this project cannot update and benefit from the released version (which removes the last dependency of pyparsing).
The upper boundary was pinned in #1263 - my suggestion would be to remove said upper boundary and release a new version of the library, so that clients have the flexibility to update packages with fewer conflicts.