fix image version

.github/workflows/tpu-tgi-release.yml

@@ -68,6 +68,6 @@ jobs:
         - name: Generate artifact attestation
           uses: actions/attest-build-provenance@v1
           with:
-            subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+            subject-name: ${{ steps.meta.outputs.tags }}
             subject-digest: ${{ steps.push.outputs.digest }}
             push-to-registry: true