chore(ci): remove attestations from release workflow (#416)

Author: tris203

.github/workflows/publish.yml

@@ -14,7 +14,6 @@ jobs:
     uses: tree-sitter/workflows/.github/workflows/release.yml@main
     with:
       generate: true
-      attestations: true
   npm:
     uses: tree-sitter/workflows/.github/workflows/package-npm.yml@main
     secrets: