roll: third_party/pigweed 03eff3c..afb18a6 (2 commits)

afb18a6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/240053 pw_containers: Add IntrusiveSet and IntrusiveMultiSet
bde3f80:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/243257 pw_containers: Add methods to erase by item

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 03eff3cfa76a7f..afb18a6ded0c43
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8732777668244138337
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8c7bc84f25d7cdf63aeeb4a9920a8c8b4617019c
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/245029
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 03eff3c..afb18a6 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 03eff3cfa76a7f75f47ced4f6c53aea1819e85d2
+Subproject commit afb18a6ded0c43e91ce85e5ec97ae0206c4873ca