feat(justfile): add a repl recipe :3

Changed files
+3
+3
justfile
··· 12 12 13 13 update-and-commit: 14 14 nix flake update && git add flake.lock && git commit -m "chore: update flake.lock" 15 + 16 + repl: 17 + nix repl --expr "builtins.getFlake \"$(pwd)\""