roll: third_party/pigweed 0fa3d64..a42890d (3 commits)

a42890d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/263154 pw_bluetooth_proxy: Replace kMaxDirections with kNumDirections
b7c6f45:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/263152 pw_bluetooth_proxy: Minor MultiBufWriter enhancements
7bec911:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/226611 pw_bluetooth: Add snoop log

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 0fa3d64beca0bf..a42890dfefc2ac
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8724366311977640913
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I2e478e880388d981fb28dd4464f92f58de36b051
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/263397
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 0fa3d64..a42890d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 0fa3d64beca0bfda4b993fa4fdf34ad53f852aef
+Subproject commit a42890dfefc2acfc9e0d5583fb215628bd8b4a8c