roll: third_party/pigweed dfcbdf3..b4bf100 (8 commits)

b4bf100:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327153 pw_transfer: Fix -Wshadow findings
8ffc27e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327073 pw_thread_zephyr: Drop `Native` prefix from pw::thread::zephyr types
37095cc:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327072 pw_thread_zephyr: Create pw::thread::zephyr namespace
a524ee0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/326942 flasher: Add the successfully flashed message for debug probe
1c226bd:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327172 docs: Update factory docs to be consistent with bazel flash target
bdfa95f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327015 pw_env_setup: Rev python deps in preparation for AirLock
39ca78d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327152 pw_bluetooth_{proxy, sapphire}: Fix -Wshadow findings
e1e9588:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/327112 docs: Update GitHub mirror URL

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: dfcbdf39af0139..b4bf10078cf875
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8702349099873198961
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I5ce43feffa36f009ef0c2abcd0e2a03099207340
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/327134
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 dfcbdf3..b4bf100 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit dfcbdf39af01396ed96346cef94dcd47d6a8dfed
+Subproject commit b4bf10078cf8752c76d0aa1dd87d884e1452d0af