Add additional permissions

Author: agriyakhetarpal

.github/workflows/release.yml

@@ -40,6 +40,8 @@ jobs:
       url: https://pypi.org/p/pyodide-build
     permissions:
       id-token: write # IMPORTANT: mandatory for trusted publishing
+      attestations: write
+      contents: read
     steps:
       - name: Download all the dists
         uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8