roll: third_party/pigweed 3 commits

8e4ae345f623819 docs: Add OWNERS
67b6c47a019a9ca pw_build_info: Add git_build_info.h header for emb
2c8b44aa6836dd3 python: Add python targets for pw_i2c, pw_digital_

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 0af21c49fa7f692..8e4ae345f623819
Roller-URL: https://ci.chromium.org/b/8744745022469178017
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I70cb344b3bb4788e8b66ae4742e4d5481a989c4f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/216796
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 0af21c4..8e4ae34 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 0af21c49fa7f692e8c6db8d718712fe44bbbf310
+Subproject commit 8e4ae345f623819a1b9f4a793ba7ad8c5be4df83