chore: address renames of boot & tmp related options

Change-Id: I78f2116a63675fff5a36826b3e5390798ab9db9f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8526
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: flokli

users/grfn/system/system/modules/common.nix

@@ -12,7 +12,7 @@ with lib;
   boot = {
     loader.systemd-boot.enable = true;
     loader.efi.canTouchEfiVariables = true;
-    cleanTmpDir = true;
+    tmp.cleanOnBoot = true;
   };
 
   networking.useDHCP = false;