roll: third_party/pigweed 4fbb15f..4f3b911 (4 commits)

4f3b911:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/246653 pw_docgen: Add 2025 PW Live dates
c3b1d34:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/246714 pw_bluetooth_proxy: Add pw_result to Android.bp
d7d4134:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/245152 pw_async2: Add waker guidance
618f47e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/245117 pw_web: Simplify proto compiler script for JS

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 4fbb15f2d0bba6..4f3b9117dfb914
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8732156084625028401
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I91e581594d2a8640edf37f55b30a90b500b98ed6
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/246834
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 4fbb15f..4f3b911 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4fbb15f2d0bba6c880bc3805d99cbe01a0916772
+Subproject commit 4f3b9117dfb9147564121ffe2eafe0c11424a384