update nix flake

flake.lock

@@ -49,11 +49,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750314194,
-        "narHash": "sha256-SjpXWEeB+UIMzuCAF94PuyAXpJdnBLF45JvI6o4wKIU=",
+        "lastModified": 1754078208,
+        "narHash": "sha256-YVoIFDCDpYuU3riaDEJ3xiGdPOtsx4sR5eTzHTytPV8=",
         "owner": "nix-community",
         "repo": "gomod2nix",
-        "rev": "a5f75f563748599d448a4a076816041d7b0fc07e",
+        "rev": "7f963246a71626c7fc70b431a315c4388a0c95cf",
         "type": "github"
       },
       "original": {
@@ -64,11 +64,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1751271578,
-        "narHash": "sha256-P/SQmKDu06x8yv7i0s8bvnnuJYkxVGBWLWHaU+tt4YY=",
+        "lastModified": 1755186698,
+        "narHash": "sha256-wNO3+Ks2jZJ4nTHMuks+cxAiVBGNuEBXsT29Bz6HASo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3016b4b15d13f3089db8a41ef937b13a9e33a8df",
+        "rev": "fbcf476f790d8a217c3eab4e12033dc4a0f6d23c",
         "type": "github"
       },
       "original": {

go.sum

@@ -1,5 +1,3 @@
-github.com/alexflint/go-arg v1.5.1 h1:nBuWUCpuRy0snAG+uIJ6N0UvYxpxA0/ghA/AaHxlT8Y=
-github.com/alexflint/go-arg v1.5.1/go.mod h1:A7vTJzvjoaSTypg4biM5uYNTkJ27SkNTArtYXnlqVO8=
 github.com/alexflint/go-arg v1.6.0 h1:wPP9TwTPO54fUVQl4nZoxbFfKCcy5E6HBCumj1XVRSo=
 github.com/alexflint/go-arg v1.6.0/go.mod h1:A7vTJzvjoaSTypg4biM5uYNTkJ27SkNTArtYXnlqVO8=
 github.com/alexflint/go-scalar v1.2.0 h1:WR7JPKkeNpnYIOfHRa7ivM21aWAdHD0gEWHCx+WQBRw=