Merge pull request #33392 from dtzWill/update/darwin-ncurses6

Use ncurses6 on all platforms

pkgs/top-level/all-packages.nix

···
 
   ncurses5 = callPackage ../development/libraries/ncurses { abiVersion = "5"; };
   ncurses6 = callPackage ../development/libraries/ncurses { abiVersion = "6"; };
-  ncurses = if stdenv.isDarwin then ncurses5 else ncurses6;
+  ncurses = ncurses6;
 
   neardal = callPackage ../development/libraries/neardal { };