update to new version (#2179)

packages/b/benchmark/xmake.lua

@@ -15,6 +15,7 @@ package("benchmark")
     add_versions("1.6.1", "6132883bc8c9b0df5375b16ab520fac1a85dc9e4cf5be59480448ece74b278d4")
     add_versions("1.7.0", "3aff99169fa8bdee356eaa1f691e835a6e57b1efeadb8a0f9f228531158246ac")
     add_versions("1.7.1", "6430e4092653380d9dc4ccb45a1e2dc9259d581f4866dc0759713126056bc1d7")
+    add_versions("1.8.0", "ea2e94c24ddf6594d15c711c06ccd4486434d9cf3eca954e2af8a20c88f9f172")
 
     if is_plat("mingw") and is_subhost("msys") then
         add_extsources("pacman::benchmark")