include the missing tuple deps in version.cc

Change-Id: I85ebf42f7a6f11d8944d058fea0574435bfdbbbf
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/8880
Reviewed-by: Brett Wilson <brettw@chromium.org>
Commit-Queue: Brett Wilson <brettw@chromium.org>

src/gn/version.cc

diff --git a/src/gn/version.cc b/src/gn/version.cc
index d5fea31..0ed25f2 100644
--- a/src/gn/version.cc
+++ b/src/gn/version.cc
@@ -5,6 +5,7 @@
 #include "gn/version.h"
 #include <iostream>
 #include <string_view>
+#include <tuple>
 
 #include "base/strings/string_number_conversions.h"