roll: third_party/pigweed 661bf47..b22815d (4 commits)

b22815d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/243882 pw_*: Use updated pw_protobuf_compiler Bazel rules
9b2dd9c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/244557 pw_system: Ensure latest logs are captured in crash snapshot
773331a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/244556 pw_multisink: Add UnsafeForEachEntryFromEnd()
0081c28:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/245243 pw_tokenizer: Add database py binary

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 661bf47f06e604..b22815d8fe704f
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8732630751022356337
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I0e7ed1a55140065652236da4bdad331a2b8ec5db
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/245492
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 661bf47..b22815d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 661bf47f06e604384a4c7eb7bf79d2f3da71ee74
+Subproject commit b22815d8fe704ffc3ab5849015caa56adb999351