[gndoc] Update GN build arguments documentation

Change-Id: Ic06fb02498177b7aabbf6176f7dee6d009950585
diff --git a/docs/gen/build_arguments.md b/docs/gen/build_arguments.md
index 1194d08..8693d0a2 100644
--- a/docs/gen/build_arguments.md
+++ b/docs/gen/build_arguments.md
@@ -1968,7 +1968,7 @@
 tests. "default.json" is a dummy file that contains no real duration data,
 and causes infra to schedule tests as if each one has the same duration.
 TODO(fxb/43704): Change to
-"[//integration/infra/test_durations/default.json](https://fuchsia.googlesource.com/integration/+/0e1d6dcabe50f2d065414afa8654242a414fa439/infra/test_durations/default.json)" after the recipes start
+"[//integration/infra/test_durations/default.json](https://fuchsia.googlesource.com/integration/+/500f9a71b02cf6a0bc071fb988e04669c726b29d/infra/test_durations/default.json)" after the recipes start
 setting this arg.
 
 **Current value (from the default):** `"//integration/infra/test_durations.json"`