roll: third_party/pigweed 9a65920..6c414a1 (3 commits)

6c414a1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/282895 pw_sync_freertos: Fix -Wthread-safety issues with thread notifications
a18dd87:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/264643 pw_allocator: Refactor Deallocator::GetInfo
28f8cdb:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/282772 pw_multisink: Expose underlying buffer size

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 9a65920c094a47..6c414a147df06d
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8717816823447390993
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4e259120624222ff5111f6bdf1354073e193cbe2
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/283128
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 9a65920..6c414a1 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 9a65920c094a47638c6a75dc36e9814b21f9981f
+Subproject commit 6c414a147df06dd7f63f5066f6a8c165bb908e65