Describe the bug
When installing cornflow_client, I cannot use "recent" versions of pulp or pytups. Because it has upper limits to their version numbers.

To Reproduce
python -m pip install cornflow_client pytups pulp

Expected behavior
Version 1.0.3 of pytups is installed.
Version 3.1.1 of pulp is installed.

Additional context
Maybe there could be a < for major versions, such as:

pytups<2
pulp<4
ortools<10

Alternatively, and I think it's the correct way, the versions for cornflow_client should be set free and it should be cornflow that has strict versions of depedencies.

Not mandatory, but for cornflow dependencies, this could be achieved by switching to pyproject.toml and uv.lock instead of requirements.txt

I can make a PR if it's needed