roll: third_party/pigweed pw_build: Extend colors across multiple log lines

colorized cmake will start with a color code on one line,
and send the color code reset many lines later.

This CL updates project_builder.py to save any non-reset
color codes and apply them to the follow log lines.

Original-Bug: 413077856
Test: colorized cmake logs now look correct

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/285892
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 517b964d0349d1f14649d3f1a04c08801f11136e

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 4682f8dd044084..517b964d0349d1
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8716645547493312545
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1a7b61fb537146beffb19760396d96a5f214f259
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/286476
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 4682f8d..517b964 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4682f8dd044084360c4cdd1df679c98909641bdd
+Subproject commit 517b964d0349d1f14649d3f1a04c08801f11136e