feat(sops): add cargo registry token as secret

users/modules/programs/zsh.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, osConfig, ... }:
 {
   programs.zsh = {
     enable = true;
@@ -12,6 +12,8 @@
       ''
         # Bind CTRL+Backspace to delete whole word
         bindkey '^H' backward-kill-word
+        # Set Cargo Registry Token
+        export CARGO_REGISTRY_TOKEN="$(cat ${osConfig.sops.secrets.cargo_api_key.path})"
       '';
     # TODO: Look into whether we need to add the history attribute
     profileExtra = # bash