roll: third_party/pigweed a5a0958..a6dfe9f (5 commits)

a6dfe9f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/289312 pw_string: Add pw_containers dependency
400558a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/287772 pw_bluetooth: Run emboss formatter
9332751:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/288194 pw_bluetooth_proxy: Use emboss to generate expected in gatt tests
97b9c75:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/288193 pw_bluetooth_proxy: Double check att_size vs bframe size
ee01230:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/288192 pw_bluetooth_proxy: Set H4 Packet Type Indicator in SetupAcl test util

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a5a09589881b2b..a6dfe9f2462b0d
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8715597148371211985
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie737ff367f4305583cef62aff4918d090e58f48f
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/289278
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 a5a0958..a6dfe9f 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a5a09589881b2bd348eafe85e5944c7361613e4d
+Subproject commit a6dfe9f2462b0d451f4c9f860c35557fec8e2170