chore(deps): lock file maintenance

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/48913d8f9127ea6530a2a2f1bd4daa1b8685d8a3?narHash=sha256-0Sj6ZKjCpQMfWnN0NURqRCQn2ob7YtXTAOTwCuz7fkA%3D' (2025-03-05)
  → 'github:nixos/nixpkgs/cdd2ef009676ac92b715ff26630164bb88fec4e0?narHash=sha256-prZ0M8vE/ghRGGZcflvxCu40ObKaB%2Bikn74/xQoNrGQ%3D' (2025-03-13)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/d69ab0d71b22fa1ce3dbeff666e6deb4917db049?narHash=sha256-k7VSqvv0r1r53nUI/IfPHCppkUAddeXn843YlAC5DR0%3D' (2025-03-05)
  → 'github:nixos/nixpkgs/6607cf789e541e7873d40d3a8f7815ea92204f32?narHash=sha256-cPfs8qMccim2RBgtKGF%2Bx9IBCduRvd/N5F4nYpU0TVE%3D' (2025-03-13)

flake.lock

@@ -41,11 +41,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1741196730,
-        "narHash": "sha256-0Sj6ZKjCpQMfWnN0NURqRCQn2ob7YtXTAOTwCuz7fkA=",
+        "lastModified": 1742136038,
+        "narHash": "sha256-DDe16FJk18sadknQKKG/9FbwEro7A57tg9vB5kxZ8kY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "48913d8f9127ea6530a2a2f1bd4daa1b8685d8a3",
+        "rev": "a1185f4064c18a5db37c5c84e5638c78b46e3341",
         "type": "github"
       },
       "original": {
@@ -57,11 +57,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1741246872,
-        "narHash": "sha256-Q6pMP4a9ed636qilcYX8XUguvKl/0/LGXhHcRI91p0U=",
+        "lastModified": 1742069588,
+        "narHash": "sha256-C7jVfohcGzdZRF6DO+ybyG/sqpo1h6bZi9T56sxLy+k=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "10069ef4cf863633f57238f179a0297de84bd8d3",
+        "rev": "c80f6a7e10b39afcc1894e02ef785b1ad0b0d7e5",
         "type": "github"
       },
       "original": {