[roll third_party/pigweed] pw_log: Add logging proto field for file name

Adds a file name field to the log proto so targets that do not rely on
tokenization may include file name information in log proto messages.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/77180

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: ee592559959ed84..027e4197f768faa
Roller-URL: https://ci.chromium.org/b/8825396565270934193
Cq-Cl-Tag: roller-builder:pigweed-sample-project-roller
Cq-Cl-Tag: roller-bid:8825396565270934193
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Idc321d500c43b77277ffb58a920117556e9d20d1
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/sample_project/+/77750
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 ee59255..027e419 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit ee592559959ed84ae4496a325a796b9ec5f6bc8b
+Subproject commit 027e4197f768faa226684cd66ceec686c70c0ec8