src: add missing uv_fs_req_cleanup()

This cleans up after the uv_fs_realpath() call a few lines up.

PR-URL: #27004
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Signed-off-by: Beth Griggs <Bethany.Griggs@uk.ibm.com>

src/node_process_object.cc

@@ -193,6 +193,7 @@ MaybeLocal<Object> CreateProcessObject(
       CHECK_NOT_NULL(req.ptr);
       exec_path = std::string(static_cast<char*>(req.ptr));
     }
+    uv_fs_req_cleanup(&req);
 #endif
     process
         ->Set(env->context(),