chore(deps): lock file maintenance

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/194846768975b7ad2c4988bdb82572c00222c0d7' (2024-07-07)
  → 'github:nixos/nixpkgs/53e81e790209e41f0c1efa9ff26ff2fd7ab35e27' (2024-07-14)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/655a58a72a6601292512670343087c2d75d859c1' (2024-07-08)
  → 'github:nixos/nixpkgs/693bc46d169f5af9c992095736e82c3488bf7dbb' (2024-07-14)

flake.lock

@@ -41,11 +41,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1720386169,
-        "narHash": "sha256-NGKVY4PjzwAa4upkGtAMz1npHGoRzWotlSnVlqI40mo=",
+        "lastModified": 1721226092,
+        "narHash": "sha256-UBvzVpo5sXSi2S/Av+t+Q+C2mhMIw/LBEZR+d6NMjws=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "194846768975b7ad2c4988bdb82572c00222c0d7",
+        "rev": "c716603a63aca44f39bef1986c13402167450e0a",
         "type": "github"
       },
       "original": {
@@ -57,11 +57,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1720418205,
-        "narHash": "sha256-cPJoFPXU44GlhWg4pUk9oUPqurPlCFZ11ZQPk21GTPU=",
+        "lastModified": 1720957393,
+        "narHash": "sha256-oedh2RwpjEa+TNxhg5Je9Ch6d3W1NKi7DbRO1ziHemA=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "655a58a72a6601292512670343087c2d75d859c1",
+        "rev": "693bc46d169f5af9c992095736e82c3488bf7dbb",
         "type": "github"
       },
       "original": {