feat: remove generate image attestation

Author: vincentzhangz

.github/workflows/docker-publish.yml

@@ -62,10 +62,3 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           platforms: linux/amd64,linux/arm64
-
-      - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@v1
-        with:
-          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          subject-digest: ${{ steps.build.outputs.digest }}
-          push-to-registry: true