roll: third_party/pigweed: pw_containers: Add test missing from CMake build

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/235400
Docs-Not-Needed: Aaron Green <aarongreen@google.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: e0174978dc6d093..cff65b95f423e54
Roller-URL: https://ci.chromium.org/b/8736968637264637905
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ibed6a1da8d6ad209548f8888d5eebde75f931bec
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/235475
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: 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 e017497..cff65b9 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e0174978dc6d09339844a9c93121fb53aec1aa01
+Subproject commit cff65b95f423e54f2eb8695a3d701ff6972fe28f