roll: pigweed pw_allocator: Capture testing dep on metrics

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/317455
Original-Revision: 12d838338afa381c33c6fff51eb2f0126550a7bc

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 199734872218b5..12d838338afa38
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8705131838670135041
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8c7e4cda8b9f1d4c68b56968a91c00f3fd656b55
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/317155
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/MODULE.bazel b/MODULE.bazel
index 91ac124..515a8a0 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -42,8 +42,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2025-08-30.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8705153901914187409.
-    commit = "199734872218b568719c21d25b2c4f1dacf457d8",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8705131838670135041.
+    commit = "12d838338afa381c33c6fff51eb2f0126550a7bc",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )