roll: third_party/pigweed a3d0ae7..399d669 (4 commits)

399d669:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/276832 pw_{rpc, protobuf}: Fix bash script error
b8d0c77:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/276893 pw_async2: Move dispatcher_lock() to pw::async2::impl namespace
4e25af0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/276753 bazel: Shorten nanopb repo name
382464c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/277132 pw_tokenizer: Enable conversion warnings in Bazel

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a3d0ae7667fd29..399d669e66ed61
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8719947404633064657
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I5799944f8669201784efccb6d1c6a9a20e708fb9
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/277257
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: 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 a3d0ae7..399d669 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a3d0ae7667fd29d03d5ab598f2ea177920ac97d7
+Subproject commit 399d669e66ed613f7fefd4263abfb4405cf5ba69