wesnoth: pin to boost183 to restore the build

Without the change `wesnoth` fails on `master` as
https://hydra.nixos.org/build/282695639/nixlog/1:

    /build/source/src/server/common/server_base.cpp:84:27: error: call of overloaded 'spawn(boost::asio::io_service&, server_base::start_server()::<lambda(boost::asio::yield_context)>)' is ambiguous

pkgs/top-level/all-packages.nix

@@ -17031,6 +17031,8 @@ with pkgs;
 
   wesnoth = callPackage ../games/wesnoth {
     inherit (darwin.apple_sdk.frameworks) Cocoa Foundation;
+    # fails to build against latest boost
+    boost = boost183;
     # wesnoth requires lua built with c++, see https://github.com/wesnoth/wesnoth/pull/8234
     lua = lua5_4.override {
       postConfigure = ''