[third_party/pigweed] Roll 4 commits

8f232f68faa1d72 pw_watch: Add emboss files to default watch patter
4f40cc5c1e596f4 pw_polyfill: Detect C23
6610d86a58f71d9 pw_allocator: Remove metrics.cc
92e710323451892 pw_allocator: Fix move semantics for UniquePtr

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e4548430290ecd3..8f232f68faa1d72
Roller-URL: https://ci.chromium.org/b/8753992096754168977
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9c17e3a6d44f169b078657369e7afd36e0ca2285
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/195389
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index e454843..8f232f6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e4548430290ecd3bd3a2ca6bc80ec05b13ad047b
+Subproject commit 8f232f68faa1d7230ccb0f0d7c8840d9b946f941