roll: third_party/pigweed 2 commits

40ced78e4ae4490 pw_presubmit: Don't automatically use exclusions
0a4a217f91f65fb pw_async2: Add missing thread_stl dependency

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: a5f72ef6f5e0e78..40ced78e4ae4490
Roller-URL: https://ci.chromium.org/b/8742948990422172305
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I7bc979f853eb182f8e2539b8ab0840ba815f1001
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/220711
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 a5f72ef..40ced78 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a5f72ef6f5e0e7844801d913d3bbe5c6538b640c
+Subproject commit 40ced78e4ae4490c6c429257717f08da30700a25