infra: disable pypi release attestations (#137)

Author: efriis

.github/workflows/_release.yml

@@ -67,3 +67,5 @@ jobs:
           packages-dir: ${{ inputs.working-directory }}/dist/
           verbose: true
           print-hash: true
+          # Temp workaround since attestations are on by default as of gh-action-pypi-publish v1.11.0
+          attestations: false