Update cpp-httplib to 0.16.2 (#4911)

packages/c/cpp-httplib/xmake.lua

@@ -19,6 +19,7 @@ package("cpp-httplib")
     add_versions("0.15.1", "8d6a4a40ee8fd3f553b7e895882e60e674bd910883fc1857587dbbabee3cdb91")
     add_versions("0.15.2", "4afbcf4203249d2cbcb698e46e1f6fb61b479013a84844d6bb1c044e233cab6a")
     add_versions("0.15.3", "2121bbf38871bb2aafb5f7f2b9b94705366170909f434428352187cb0216124e")
+    add_versions("0.16.2", "75565bcdf12522929a26fb57a2c7f8cc0e175e27a9ecf51616075f3ea960da44")
 
     add_configs("ssl",  { description = "Requires OpenSSL", default = false, type = "boolean"})
     add_configs("zlib",  { description = "Requires Zlib", default = false, type = "boolean"})