Revert "python3Packages.google-cloud-spanner: 3.58.0 -> 3.62.0" (#495262)

buildPythonPackage rec {

  pname = "google-cloud-spanner";

  version = "3.62.0";

  version = "3.58.0";

  pyproject = true;

  src = fetchFromGitHub {

    owner = "googleapis";

    repo = "python-spanner";

    tag = "v${version}";

    hash = "sha256-3WmfDwbdhYY1xaA5RnrAuD1+EDrJ3KMBsonQkuFkgcA=";

    hash = "sha256-bIagQjQv+oatIo8mkA8t5wP9igMnorkiudgyWkVnJcg=";

  };

  build-system = [ setuptools ];