tools/dockerfile/grpc_artifact_centos6_x86.current_version

us-docker.pkg.dev/grpc-testing/testing-images-public/grpc_artifact_centos6_x86:c0dfebb86cfaf2a3db97d9dc470010a219584b6e@sha256:19783239da92208f0f39cf563529cd02e889920497ef81c60d20391fa998af62