[build] Disable attestations for trusted publishing

Currently does not work with reusable workflows, e.g. release-nightly.yml calling release.yml

Ref: https://github.com/pypa/gh-action-pypi-publish/releases/tag/v1.11.0
     pypa/gh-action-pypi-publish#255
     pypi/warehouse#11096

Authored by: bashonly

.github/workflows/release.yml

@@ -282,6 +282,7 @@ jobs:
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
           verbose: true
+          attestations: false  # Currently doesn't work w/ reusable workflows (e.g. release-nightly)
 
   publish:
     needs: [prepare, build]