Fix typo in publish.yaml (#207)

#206 had a typo 😭

Author: harshita-gupta

.github/workflows/publish.yaml

@@ -105,7 +105,7 @@ jobs:
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
           repository-url: https://test.pypi.org/legacy/
-          attestation: false
+          attestations: false
       - name: Publish distribution 📦 to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
   publish-to-github-releases: