develop/flake.nix: nix flake update

develop/flake.lock

@@ -1134,11 +1134,11 @@
     },
     "nixpkgs_16": {
       "locked": {
-        "lastModified": 1707546158,
-        "narHash": "sha256-nYYJTpzfPMDxI8mzhQsYjIUX+grorqjKEU9Np6Xwy/0=",
+        "lastModified": 1707956935,
+        "narHash": "sha256-ZL2TrjVsiFNKOYwYQozpbvQSwvtV/3Me7Zwhmdsfyu4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d934204a0f8d9198e1e4515dd6fec76a139c87f0",
+        "rev": "a4d4fe8c5002202493e87ec8dbc91335ff55552c",
         "type": "github"
       },
       "original": {