flake.lock: Update

Flake lock file updates:

```
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/cdd2ef009676ac92b715ff26630164bb88fec4e0' (2025-03-13)
  → 'github:nixos/nixpkgs/f0946fa5f1fb876a9dc2e1850d9d3a4e3f914092' (2025-03-23)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/6607cf789e541e7873d40d3a8f7815ea92204f32' (2025-03-13)
  → 'github:nixos/nixpkgs/1e5b653dff12029333a6546c11e108ede13052eb' (2025-03-22)
```

flake.lock

@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1742512142,
-        "narHash": "sha256-8XfURTDxOm6+33swQJu/hx6xw1Tznl8vJJN5HwVqckg=",
+        "lastModified": 1742751704,
+        "narHash": "sha256-rBfc+H1dDBUQ2mgVITMGBPI1PGuCznf9rcWX/XIULyE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "7105ae3957700a9646cc4b766f5815b23ed0c682",
+        "rev": "f0946fa5f1fb876a9dc2e1850d9d3a4e3f914092",
         "type": "github"
       },
       "original": {
@@ -36,11 +36,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1742422364,
-        "narHash": "sha256-mNqIplmEohk5jRkqYqG19GA8MbQ/D4gQSK0Mu4LvfRQ=",
+        "lastModified": 1742669843,
+        "narHash": "sha256-G5n+FOXLXcRx+3hCJ6Rt6ZQyF1zqQ0DL0sWAMn2Nk0w=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a84ebe20c6bc2ecbcfb000a50776219f48d134cc",
+        "rev": "1e5b653dff12029333a6546c11e108ede13052eb",
         "type": "github"
       },
       "original": {