add boost 1.73.0

packages/b/boost/xmake.lua

@@ -9,6 +9,7 @@ package("boost")
     add_urls("https://github.com/xmake-mirror/boost/releases/download/boost-$(version).tar.bz2", {version = function (version) 
             return version .. "/boost_" .. (version:gsub("%.", "_"))
         end})
+    add_versions("1.73.0", "4eb3b8d442b426dc35346235c8733b5ae35ba431690e38c6a8263dce9fcbb402")
     add_versions("1.72.0", "59c9b274bc451cf91a9ba1dd2c7fdcaf5d60b1b3aa83f2c9fa143417cc660722")
     add_versions("1.70.0", "430ae8354789de4fd19ee52f3b1f739e1fba576f0aded0897c3c2bc00fb38778")