roll: third_party/pigweed dfd05cc..b4e66e6 (5 commits)

b4e66e6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/269292 bluetooth: Fix AVDTP dynamic size
15b0072:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/269293 pw_env_setup: PyPI version bump to 0.0.21
b563e5b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/267612 pw_bloat: Build Bazel size reports with a specified platform
c0e69a9:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/268974 pw_ide: Better orphaned file feedback
fcd6de2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/269213 pw_protobuf: Fix examples in docs

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: dfd05cce49bb8f..b4e66e6fc1a761
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8722461366154626545
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie57293ad208845eeb6bbb4e6d2bb7412408757df
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/269372
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 dfd05cc..b4e66e6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit dfd05cce49bb8fb35197c7264354aa9ee67fd8d3
+Subproject commit b4e66e6fc1a761a860c663b3b0c84b85026f4ba5