Update libsvm to v334 (#5025)

packages/l/libsvm/xmake.lua

@@ -6,6 +6,7 @@ package("libsvm")
 
     add_urls("https://github.com/cjlin1/libsvm/archive/refs/tags/$(version).tar.gz",
              "https://github.com/cjlin1/libsvm.git")
+    add_versions("v334", "3ecbf010c0b8f3bb44d6f359884b726ff30540fee9633242ede49d4dbfd7e93e")
     add_versions("v333", "ee898ca11cef85b09e059b278b3ab4ff58cd38f70169829e75b4a3cb9ddc5013")
     add_versions("v332", "e1d7d316112d199ebd69c9695f79226d236b86e2c8d88e70cfe35fd383954ed8")
     add_versions("v325", "1f587ec0df6fd422dfe50f942f8836ac179b0723b768fe9d2fabdfd1601a0963")