roll: third_party/pigweed 3925669..224bdf6 (8 commits)

224bdf6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/507005 pw_bluetooth_sapphire: Reject legacy pairing requests when it's disabled
f3beab1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/507365 pw_bluetooth_sapphire: Remove old loopback node
299ee5c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/495774 bazel: Upgrade CIPD QEMU package on Linux
691dee3:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/503945 pw_assert: Migrate C/C++ API reference to Doxygen
60b84fd:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/503486 docs: Add Bazel version support policy
3bf6758:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/505806 pw_rpc2: Remove deprecated //pw_rpc2/cpp:status alias
a616880:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/506928 pw_bluetooth_sapphire: Deduplicate child-node helpers
d9e583c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/499353 docs: Add review-time C++ checks to style guides

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 392566915757a7..224bdf60c25969
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8667436901644490481
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I84bb7b03f5cdddfc690cd3d9a247449d4fda3cc3
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/508065
diff --git a/third_party/pigweed b/third_party/pigweed
index 3925669..224bdf6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 392566915757a7430f57436187e607ef884d7e8e
+Subproject commit 224bdf60c25969a9cb24e0776423caaed09cd6b9