[roll] Roll third_party/go Skip flaky Ticker test on Mac

This test is super flaky and frequently causes false rejections in
recipes.git CQ, e.g.: https://ci.chromium.org/b/8853237771852213328

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/go/+/498258
Original-Revision: 2cfa1d2b9fe7990c941255384089e7bf92e2b187
GitOrigin-RevId: 2e524c6b597cd2aa7c15ca947d20fb7213ef6725
Change-Id: If547b5f624f77a4cc4692fa757b5a5e1db00f631
diff --git a/third_party/flower b/third_party/flower
index 7930a2f..f19a3d0 100644
--- a/third_party/flower
+++ b/third_party/flower
@@ -132,7 +132,7 @@
     <project name="third_party/go"
              remote="https://fuchsia.googlesource.com/third_party/go"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="172637d6d28c3bf3eb40bc13b4c3408303f972bd"
+             revision="2cfa1d2b9fe7990c941255384089e7bf92e2b187"
              path="third_party/go"/>
     <project name="third_party/go.uber.org/multierr"
              remote="https://fuchsia.googlesource.com/third_party/go.uber.org/multierr"