roll: third_party/pigweed d6827c1..c13d91e (2 commits)

c13d91e:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/242213 pw_unit_test: Test framework for constexpr unit tests
d965f34:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/182900 pw_bluetooth_sapphire: Use size calculation for reports_size in Emboss

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: d6827c16644efa..c13d91eae61a50
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8728009863048955745
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I559083b1487102ff3cb5e69db2468672a1cf24f3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/255965
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 d6827c1..c13d91e 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit d6827c16644efa06f524a702903397e3cc07ba4c
+Subproject commit c13d91eae61a50dfbe08023983337086509e7a8e