build: fix warnings from uv for gn build

PR-URL: #51069
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: zcbenz

deps/uv/unofficial.gni

@@ -50,6 +50,7 @@ template("uv_gn_build") {
         "-Wno-shadow",
         "-Wno-unreachable-code",
         "-Wno-unreachable-code-return",
+        "-Wno-unused-but-set-parameter",
         "-Wno-unused-but-set-variable",
         "-Wno-unused-function",
         "-Wno-unused-result",