roll: third_party/pigweed pw_bluetooth: Remove scratch buffer from snoop log stack

Rather than creating a large buffer on the stack, which could overflow
the stack create a member buffer for creating records.

Original-Bug: 375198513
Test: presubmit (unit tests)
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/265832
Original-Revision: febc8c2aff059a11a518c4a21fb15de8a7539511

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: cf933eaf7b231e..febc8c2aff059a
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8722527973977949441
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I520461c4dab859842baa52cabd2ccb5fee183a28
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/268915
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 cf933ea..febc8c2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit cf933eaf7b231e7a6df9537fb69e501a40883e32
+Subproject commit febc8c2aff059a11a518c4a21fb15de8a7539511