Update Vim plugin hash in nixpkgs

[soywod]

Hash in pkgs/applications/editors/vim/plugins/overrides.nix should be updated for the next release.

[N4CH723HR3R]

this has already been resolved.

    src = fetchFromGitHub {
      owner = "pimalaya";
      repo = "himalaya-vim";
      rev = "bb8d0ebbe82b1ba1d487354fab86d81f12a82c4d";
      hash = "sha256-YW4qoCDLg/LSUKkptvecoa4n1niwZLeiSBCFLCY30j4=";
    };

himalaya-vim already uses the latest commit