Update mutter triple buffering overlay

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5de0b32be6e85dc1a9404c75131316e4ffbc634c' (2023-12-01)
  → 'github:NixOS/nixpkgs/b4372c4924d9182034066c823df76d6eaf1f4ec4' (2023-12-07)
• Updated input 'thunderbird-gnome-theme':
    'github:rafaelmardojai/thunderbird-gnome-theme/a899ca12204d19f4834fbd092aa5bb05dc4bd127' (2023-11-06)
  → 'github:rafaelmardojai/thunderbird-gnome-theme/966e9dd54bd2ce9d36d51cd6af8c3bac7a764a68' (2023-12-06)

flake.lock

@@ -118,11 +118,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1701389149,
-        "narHash": "sha256-rU1suTIEd5DGCaAXKW6yHoCfR1mnYjOXQFOaH7M23js=",
+        "lastModified": 1701952659,
+        "narHash": "sha256-TJv2srXt6fYPUjxgLAL0cy4nuf1OZD4KuA1TrCiQqg0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5de0b32be6e85dc1a9404c75131316e4ffbc634c",
+        "rev": "b4372c4924d9182034066c823df76d6eaf1f4ec4",
         "type": "github"
       },
       "original": {
@@ -143,11 +143,11 @@
     "thunderbird-gnome-theme": {
       "flake": false,
       "locked": {
-        "lastModified": 1699285862,
-        "narHash": "sha256-3TQYBJAeQ2fPFxQnD5iKRKKWFlN3GJhz1EkdwE+4m0k=",
+        "lastModified": 1701889124,
+        "narHash": "sha256-K+6oh7+J6RDBFkxphY/pzf0B+q5+IY54ZMKZrFSKXlc=",
         "owner": "rafaelmardojai",
         "repo": "thunderbird-gnome-theme",
-        "rev": "a899ca12204d19f4834fbd092aa5bb05dc4bd127",
+        "rev": "966e9dd54bd2ce9d36d51cd6af8c3bac7a764a68",
         "type": "github"
       },
       "original": {

overlays/gnome.nix

@@ -4,7 +4,7 @@ self: super:
     mutter = gsuper.mutter.overrideAttrs (oldAttrs: {
       src = super.fetchurl {
         url = "https://gitlab.gnome.org/Community/Ubuntu/mutter/-/archive/triple-buffering-v4-45/mutter-triple-buffering-v4-45.tar.gz";
-        sha256 = "E+AdsQdotqlH/kYskl+Fwv0i+UTK7mfdkJ+zlfLdU9o=";
+        sha256 = "tN+zQ5brk+hc+louIipqPV/Bqft42ghKOzjZZMj5Q8A=";
       };
     });
   });