roll: third_party/pigweed pw_bluetooth_proxy: Separate out gatt notify tests

Original-Bug: 369709521
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/265140
Original-Revision: 23e713a4bbeea914d6352efab6d3189eaec12e64

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: c8f50f83f95939..23e713a4bbeea9
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8723673174896886449
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1bf1dc2330fbd4a58ddf253b774afba325c03f84
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/265615
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 c8f50f8..23e713a 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c8f50f83f95939fdf63b6ce86be444838d14e24e
+Subproject commit 23e713a4bbeea914d6352efab6d3189eaec12e64