fix: update NixOS channel references to version 25.05 and adjust netdata configuration

hosts/fw/channel

@@ -1 +1 @@
-https://channels.nixos.org/nixos-24.11
+https://channels.nixos.org/nixos-25.05

hosts/mail/channel

@@ -1 +1 @@
-https://channels.nixos.org/nixos-24.11
+https://channels.nixos.org/nixos-25.05

hosts/mail/modules/dovecot.nix

@@ -88,6 +88,7 @@ in
 {
   environment.systemPackages = with pkgs; [
     doveSync
+    dovecot_pigeonhole
   ];
 
   services.dovecot2 = {
@@ -215,9 +216,6 @@ in
       # Read multiple mails in parallel, improves performance
       mail_prefetch_count = 20
     '';
-    modules = [
-      pkgs.dovecot_pigeonhole
-    ];
     protocols = [
       "sieve"
     ];

hosts/nb/configuration.nix

@@ -146,6 +146,7 @@ in {
       "/var/lib/bluetooth"
       "/var/lib/docker"
       "/var/lib/flatpak"
+      "/var/lib/fprint"
       "/var/lib/nixos"
       "/var/lib/mysql"
       "/etc/NetworkManager/system-connections"

hosts/nb/modules/fingerprint.nix

@@ -5,7 +5,6 @@
 
   security.pam.services.login.fprintAuth = true;
   security.pam.services.sudo.fprintAuth = true;
-  security.pam.services.sddm.fprintAuth = true;
   # If you use swaylock and want fingerprint auth for it:
   security.pam.services.swaylock.fprintAuth = true;
   # Add Polkit rule to allow locally active users to manage their own fingerprints

hosts/web-arm/channel

@@ -1 +1 @@
-https://channels.nixos.org/nixos-24.11
+https://channels.nixos.org/nixos-25.05