Merge pull request #327698 from Shawn8901/update_xanmod-2024-07-15

  # NOTE: When updating these, please also take a look at the changes done to

  # kernel config in the xanmod version commit

  ltsVariant = {

    version = "6.6.39";

    hash = "sha256-s8rE92YVz+0SC/VRvItakp7Q6whFzskFkalqku6j43Y=";

    version = "6.6.40";

    hash = "sha256-UkeBSHtkyNvpLSiJiB8HTNmVJcKDVEftvFcQA497FLU=";

    variant = "lts";

  };