roll: third_party/pigweed bazel: Roll to Bazel 8.7.0 (LTS)

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/409853
Original-Revision: 46acee7f100609cd2cba11e557e95eaa20af4818

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b3e752f1edff2e..46acee7f100609
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8681961438717407649
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3958fa7ee090c0c719d3947f32d4d81c3c5fe3eb
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/409838
diff --git a/third_party/pigweed b/third_party/pigweed
index b3e752f..46acee7 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b3e752f1edff2ef5ece7f73faa1f9894c173fa68
+Subproject commit 46acee7f100609cd2cba11e557e95eaa20af4818