roll: third_party/pigweed a9c9b55..a5a0958 (8 commits)

a5a0958:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/287175 pw_grpc: Make window update less chatty
01610a7:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/281854 pw_ide: Bazel rules for compile commands generator
bc055a5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/287296 pw_kernel: Use MaybeUninit<u8> for stack memory
aa93459:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/286672 docs: Remove the GN build
3c8f92d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/287176 pw_presubmit: Remove obsolete bazel_test step from presubmit
f622e98:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/284393 docs: Remove WORKSPACE-related notes
8643c1d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/289032 pw_grpc: Apply fixes for internal_strict_warnings
430430d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/287893 pw_containers: Improvements to common utilities

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a9c9b55ecde6d6..a5a09589881b2b
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8715641275528687841
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iaf4b854d9f710317a7e41f83846fe68d91d64ef2
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/288939
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index a9c9b55..a5a0958 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a9c9b55ecde6d6b53416cea179c83c4d0e868da3
+Subproject commit a5a09589881b2bd348eafe85e5944c7361613e4d