chore(wpcarro/diogenes): Fix formatting

This is the result of `evil-indent` going wrong.

Change-Id: I8d68bcb790da03b974d478760bf1224b38d56249
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4594
Reviewed-by: wpcarro <wpcarro@gmail.com>
Autosubmit: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI

users/wpcarro/nixos/diogenes/default.nix

@@ -55,8 +55,8 @@ in {
     ssh = {
       startAgent = true;
       extraConfig = ''
-      AddKeysToAgent yes
-    '';
+        AddKeysToAgent yes
+      '';
     };
   };