unpin python dependencies after sslyze fix is merged

[jmayclin]

Problem:

setuptools made a breaking change in setup file validation: https://github.com/pypa/setuptools/blob/main/NEWS.rst#deprecations-and-removals

This is affecting tls_parser, a dependency of sslyze: nabla-c0d3/tls_parser#11

We use exclude-newer to temporarily workaround this issue, as suggested by uv: astral-sh/uv#12440

Solution:

We should remove this exclude-newer once the linked PR is merged.