[roll third_party/pigweed] pw_presubmit: Add more info to todo summary

Add more details to the failure_summary.log in TODO checks.
Specifically, include more than just one file.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/188750

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: cb2d8ae3fad591c..8510c7de9b84223
Roller-URL: https://ci.chromium.org/b/8757979673323942561
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ibd907be00fe042eda857914b85a1e49f72dd64c4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/189102
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index cb2d8ae..8510c7d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit cb2d8ae3fad591c942145f180b2b6c2bd65b59f6
+Subproject commit 8510c7de9b8422369860c719f322a9bed6ab2d08