remove attestation for now

Author: ksunden

.github/workflows/release.yml

@@ -56,10 +56,5 @@ jobs:
       - name: Print out packages
         run: ls dist
 
-      - name: Generate artifact attestation for sdist and wheel
-        uses: actions/attest-build-provenance@7668571508540a607bdfd90a87a560489fe372eb  # v2.1.0
-        with:
-          subject-path: dist/mpl_data_containers-*
-
       - name: Publish package distributions to PyPI
         uses: pypa/gh-action-pypi-publish@67339c736fd9354cd4f8cb0b744f2b82a74b5c70  # v1.12.3