[roll third_party/pigweed] roll: buildifier

From: version:2@4.2.4
To: version:2@4.2.5

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/79120
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed.google.com.iam.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 958b6a9db443bf3..9198bc6dd7ee5d5
Roller-URL: https://ci.chromium.org/b/8824801163880096593
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8824801163880096593
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I60efb9ee421317383061774484f961de3db61792
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/79122
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 958b6a9..9198bc6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 958b6a9db443bf3cc05d24d9d80d081906df9357
+Subproject commit 9198bc6dd7ee5d5c607d110af8bc32daa5475292