[third_party/pigweed] Roll 4 commits

312412b466c5118 pw_web: Capture browser logs in the log viewer
5ce9ca7349c2469 bootstrap: Warn about Windows case-sensitivity sup
f25eb6ab8c1d4cc pw_toolchain_bazel: Support Windows in toolchain t
6bbe3599f021969 docs: Clarify rvalue docs

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 25069b4047a57f3..312412b466c5118
Roller-URL: https://ci.chromium.org/b/8754717255900423841
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4d858af7a047e7427004f536e424d627722a2d92
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/194732
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 25069b4..312412b 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 25069b4047a57f3d908c850616accdd0120b3c36
+Subproject commit 312412b466c511808ef9a19ac62fc90399e6af5f