Merge #60201: neo.map: fix URL

Current URL is no longer available.

(cherry picked from commit 6e100ae88f1096ec8c3dbc72e2b2e587c3a08d64)
Close #61698.

pkgs/os-specific/linux/kbd/keymaps.nix

···
 
     src = fetchurl {
       name = "neo.map";
-      url = "https://svn.neo-layout.org/linux/console/neo.map?r=${version}";
+      url = "https://raw.githubusercontent.com/neo-layout/neo-layout/"
+          + "a0dee06fed824abfad658b7f10e6d907b270be0a/linux/console/neo.map";
       sha256 = "19mfrd31vzpsjiwc7pshxm0b0sz5dd17xrz6k079cy4im1vf0r4g";
     };