Merge pull request #265181 from zzzsyyy/update/xanmod

let

  # These names are how they are designated in https://xanmod.org.

  ltsVariant = {

    version = "6.1.60";

    hash = "sha256-KYCeONJxyFPee4pvBLRw/MBTzPU7D2oZCrAVr3t/yPM=";

    version = "6.1.61";

    hash = "sha256-15dAzCcFUekBlkBfcHWiZ3gourimLp6GlUKeWAddDqo=";

    variant = "lts";

  };

  mainVariant = {

    version = "6.5.9";

    hash = "sha256-5SFPBsDTmq7tA6pyM7rbIjBPAtPbqhUl6VfA2z5baPA=";

    version = "6.5.10";

    hash = "sha256-t99LKAmNApcjFVna3ChNZp4O6ag9t2kQVrg8yRsTANg=";

    variant = "main";

  };