update nixpkgs-unstable

Author: cdmistman

nix/sources.json

@@ -112,10 +112,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "cbd8ec4de4469333c82ff40d057350c30e9f7d36",
-        "sha256": "1bcgis62aj9slin2cm2h7ywqq4qswh4kzdlx0zgdwz80g4z10f8f",
+        "rev": "a48741b083d4f36dd79abd9f760c84da6b4dc0e5",
+        "sha256": "1in67kl5x9a0v3y0yw6fibpx1797k1d4s3nd2zfq5bwp7343ia84",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/cbd8ec4de4469333c82ff40d057350c30e9f7d36.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/a48741b083d4f36dd79abd9f760c84da6b4dc0e5.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "prybar": {