ci: remove GH token for provenance

Author: Nicconike

.github/workflows/release.yml

@@ -229,7 +229,6 @@ jobs:
             image: ${{ needs.docker.outputs.image }}
             digest: ${{ needs.docker.outputs.digest }}
             registry-username: ${{ github.actor }}
-            registry-password: ${{ secrets.GITHUB_TOKEN }}
 
     cleanup:
         runs-on: ubuntu-latest