perlPackages.PerconaToolkit: fix hash mismatch

    owner = "percona";

    repo = "percona-toolkit";

    rev = "v${version}";

    sha256 = "sha256-fJGeL9XZHTFmpns5CE7It35HRnF3JiC6muOpOS1zboI=";

    sha256 = "sha256-NpLUHIdGnuNJmSYBYErU7yzFkxKRFQVWJHJqJ2q4U5E=";

    # needed for build script

    leaveDotGit = true;