roll: third_party/pigweed 2 commits

9c624cddf114a93 pw_presubmit: Add copyright notice to some test da
eaebb102be62e06 docs: Add shortlink to pw_enviro draft

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 205872022755bb3..9c624cddf114a93
Roller-URL: https://ci.chromium.org/b/8742760881622475297
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8effa4197ccec46678d7355f51051e527b0820b0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/221536
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.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 2058720..9c624cd 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 205872022755bb381d18cb3cc948dd4899dde8ff
+Subproject commit 9c624cddf114a936d7cdfd7d9c35a5633adcd860