scsh: Update to latest head, unbreaking the build
scsh: Update to latest head, unbreaking the build

The only difference with the previous revision is that the submodule URL is now https: instead of unauthenticated git@ protocol - this pull request:

https://github.com/scheme/scsh/pull/44
NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs