Merge pull request #188 from IABTechLab/sch-UID2-5486-fix-pypi-twine-invalid-metadata-license-file

added packaging upgrade to fix twine issue

Author: sophia-chen-ttd

.github/workflows/shared-publish-to-pypi-versioned.yaml

@@ -81,6 +81,7 @@ jobs:
       - name: Publish
         run: |
           python3 -m pip install --upgrade twine
+          python3 -m pip install --upgrade packaging
           python3 -m twine upload dist/* -u __token__ -p "${{ secrets.PYPI_API_KEY }}"
 
       - name: Commit pyproject.toml, version.json and set tag