message: Enable bazel remote cache for kokoro tests
diff: @@ -48,7 +48,7 @@ docker --version
  export PYTHON_VERSION=3.8
  export BAZEL_VERSION=$(cat .bazelversion)
  -export BAZEL_OPTIMIZATION="--copt=-msse4.2 --copt=-mavx --compilation_mode=opt"
  +export BAZEL_OPTIMIZATION="--copt=-msse4.2 --copt=-mavx --compilation_mode=opt --remote_cache=https://storage.googleapis.com/tensorflow-sigs-io --remote_upload_local_results=false"
  export BAZEL_OS=$(uname | tr '[:upper:]' '[:lower:]')
  docker run -i --rm -v $PWD:/v -w /v --net=host \
  