Remove vulnerable Setuptools pin from generation dependencies

[bernalde]

Summary

• require Hyperopt 0.3.0, which replaced its pkg_resources usage with importlib.resources
• remove Setuptools from the runtime/generation dependency surface
• require patched Setuptools 83+ only in the isolated build backend
• remove obsolete warning suppression and document/test the supported dependency policy

This resolves Dependabot alert 4. Dependabot could not generate a compatible update because the old Hyperopt workaround required setuptools<81, while the alert is only patched in Setuptools 83.0.0+.

Verification

• python run_tests.py unit — 402 passed
• isolated python -m build --sdist with setuptools>=83
• Hyperopt 0.3.0 API smoke test using the Wishart workflow imports, with pkg_resources deliberately unavailable
• notebook JSON validation and git diff --check

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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