roll: third_party/pigweed d95bb92..fac44b1 (3 commits)

fac44b1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/264912 build: Propagate Rust channel to proc macros (exec cfg)
89a3c9c:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/264954 pw_bluetooth_proxy: Support acquire of gatt notify channels
6e18552:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/265212 pw_bluetooth_proxy: Use explicit constructor for std::atomic

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: d95bb9205b6826..fac44b1dc4f107
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8723733442097721713
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icb6fc369664eb384c777160f74255dd8092429e5
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/265116
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: 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 d95bb92..fac44b1 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit d95bb9205b6826e7c35f06f2ae53e354a1d795e8
+Subproject commit fac44b1dc4f107b92072b97cf1b77c468a5cf4a9