Ensure borgbackup cache / config is persisted

nixos/boxes/colony/vms/shill/containers/vaultwarden.nix

@@ -99,6 +99,8 @@ in
             };
 
             borgbackup.jobs.vaultwarden = {
+              readWritePaths = [ "/var/lib/borgbackup" "/var/cache/borgbackup" ];
+
               paths = [ vwData ];
               repo = "zh2855@zh2855.rsync.net:borg/vaultwarden2";
               doInit = true;

nixos/boxes/colony/vms/whale2/minecraft/default.nix

@@ -123,6 +123,7 @@ in
           within = "12H";
           hourly = 48;
         };
+        readWritePaths = [ "/var/lib/borgbackup" "/var/cache/borgbackup" ];
 
         # Avoid Minecraft poking the files while we back up
         preHook = rconCommand "save-off";