chore: kernel and systemd update

pkgs/kernel/default.nix

@@ -1,7 +1,7 @@
 { pkgs }:
 let
-  version = "6.14.7";
-  hash = "sha256-gRIgK8JtCGlXqU0hCabc1EeMW6GNDwpeHF3+6gH1SXI=";
+  version = "6.14.8";
+  hash = "sha256-YrEuzTB1o1frMgk1ZX3oTgFVKANxfa04P6fMOqSqKQU=";
 in
 (pkgs.callPackage ./manual-config.nix { }) {
   version = "${version}-patos1";

pkgs/systemd/default.nix

@@ -7,7 +7,7 @@
   ...
 }:
 let
-  version = "257.5";
+  version = "257.6";
 
   # Use the command below to update `releaseTimestamp` on every (major) version
   # change. More details in the commentary at mesonFlags.