[CHORE]: Add PyPI package linters to GitHub Actions

Description

Add PyPI packaging quality checks to the python-package.yml workflow to ensure our distributions are properly built and ready for publishing.

Tasks

• Add twine check to validate wheel and sdist metadata
• Add check-manifest to verify MANIFEST.in completeness
• Add pyroma to assess package metadata quality
• Update python-package.yml workflow to run these checks after build

Implementation

Add new steps after the "Build distributions" step in .github/workflows/python-package.yml:

# 5️⃣  Install package quality tools
- name: Install package linters
  run: |
    python3 -m pip install twine check-manifest pyroma

# 6️⃣  Validate wheel/sdist metadata
- name: Check distribution metadata (twine)
  run: twine check dist/*

# 7️⃣  Verify MANIFEST.in completeness
- name: Check manifest (check-manifest)
  run: check-manifest

# 8️⃣  Assess package quality
- name: Check package quality (pyroma)
  run: pyroma -d .

Benefits

• Early detection of packaging issues before PyPI upload
• Ensures all necessary files are included in distributions
• Validates package metadata meets PyPI standards
• Prevents broken releases

References

• [twine check documentation](https://twine.readthedocs.io/en/latest/#twine-check)
• [check-manifest](https://github.com/mgedmin/check-manifest)
• [pyroma](https://github.com/regebro/pyroma)