try disabling attestions on test pypi

Author: davidism

.github/workflows/publish.yaml

@@ -68,6 +68,8 @@ jobs:
         with:
           repository-url: https://test.pypi.org/legacy/
           packages-dir: artifact/
+          skip-existing: true
+          attestations: false
       - uses: pypa/gh-action-pypi-publish@15c56dba361d8335944d31a2ecd17d700fc7bcbc # v1.12.2
         with:
           packages-dir: artifact/