[third_party/pigweed] Roll 4 commits

506466d72aa5cbf pw_channel: Consistent datagram/byte channel alias
cd15ca3178ec45e pw_allocator: Track requested sizes in blocks
cae40e3337b2234 pw_toolchain: Add clang-apply-replacements plugin
a2504dc03eab921 targets/rp2040: Allow using rp2040 devices in boot

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: f86d3492dd95f8b..506466d72aa5cbf
Roller-URL: https://ci.chromium.org/b/8747280183513490545
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3b1a38e30e6f48effe160935da35b9bad52e24a8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/210837
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.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 f86d349..506466d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit f86d3492dd95f8ba156befe6feb3929c835505e1
+Subproject commit 506466d72aa5cbf02128d6e967bc2292f1a09b44