MODIFY: Add deploy_key into sops hosts

hosts/common/core/sops.nix

@@ -21,6 +21,9 @@ in
     };
     secrets = {
       "passwords/root".neededForUsers = true;
+      "ssh_keys/deploy_key/id_ed25519" = {
+        path = "/etc/ssh/deploy_key-ssh-ed25519";
+      };
     };
   };
 }