Feature Request: Unpin exact versions of dependencies

[ReinderVosDeWael]

Is your feature request related to a problem? Please describe.
mlconjug3's dependencies use an exact version pin in requirements.txt. This makes it incompatible with other packages that use more recent versions of dependencies. For example, mlconjug3 is incompatible with instructor on the dependency rich due to mlconjug3 requiring rich==13.2.0 and instructor using ^13.7.0. (c.f. https://github.com/jxnl/instructor/blob/e8280bdfe9f20de9844324351659127528031cf0/pyproject.toml#L17).

Describe the solution you'd like
Allow the dependencies to have the pinned versions or newer.

Describe alternatives you've considered
My current solution is that I forked mlconjug3 and dropped the version pinning entirely.