flake.lock: Update

Flake lock file updates:

• Updated input 'home-manager':
    'github:nix-community/home-manager/502d9b7d30a1f5940ecdb786b4f71ebf57b1ac13?narHash=sha256-iV3C4l4XqPFcfJIHWQTOeSTuDgFg%2BESdUeiYxCSgebE%3D' (2025-07-06)
  → 'github:nix-community/home-manager/b4486ff44addd453a64fd8c176ab2fd7ad3f6eb3?narHash=sha256-F9xzryA4OfrGTQS1N8SimJQzoD8qDMj/e2lTFE9V288%3D' (2025-07-06)
• Updated input 'nixpkgs-stable':
    'github:nixos/nixpkgs/7a732ed41ca0dd64b4b71b563ab9805a80a7d693?narHash=sha256-u7ubvtxdTnFPpV27AHpgoKn7qHuE7sgWgza/1oj5nzA%3D' (2025-07-03)
  → 'github:nixos/nixpkgs/29e290002bfff26af1db6f64d070698019460302?narHash=sha256-t75Shs76NgxjZSgvvZZ9qOmz5zuBE8buUaYD28BMTxg%3D' (2025-07-05)

flake.lock

@@ -28,11 +28,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1751810302,
+        "lastModified": 1751816429,
-        "narHash": "sha256-iV3C4l4XqPFcfJIHWQTOeSTuDgFg+ESdUeiYxCSgebE=",
+        "narHash": "sha256-F9xzryA4OfrGTQS1N8SimJQzoD8qDMj/e2lTFE9V288=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "502d9b7d30a1f5940ecdb786b4f71ebf57b1ac13",
+        "rev": "b4486ff44addd453a64fd8c176ab2fd7ad3f6eb3",
         "type": "github"
       },
       "original": {
@@ -125,11 +125,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1751582995,
+        "lastModified": 1751741127,
-        "narHash": "sha256-u7ubvtxdTnFPpV27AHpgoKn7qHuE7sgWgza/1oj5nzA=",
+        "narHash": "sha256-t75Shs76NgxjZSgvvZZ9qOmz5zuBE8buUaYD28BMTxg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "7a732ed41ca0dd64b4b71b563ab9805a80a7d693",
+        "rev": "29e290002bfff26af1db6f64d070698019460302",
         "type": "github"
       },
       "original": {