roll: third_party/pigweed pw_async2: Fix coroutine CMake+Windows compilation

Fix: b/366590745
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237932
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: cfa4da0ff6f50b81e21c3343312e15caf41a2bdf

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: bcda51c2834dcc..cfa4da0ff6f50b
Roller-URL: https://ci.chromium.org/b/8735772595393877633
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idd7ae7b01bc1298a0e33ed2cb0bf699757d1f7e9
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/238033
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index bcda51c..cfa4da0 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit bcda51c2834dcc7d6d2a4c862ddfae94ffb7b899
+Subproject commit cfa4da0ff6f50b81e21c3343312e15caf41a2bdf