roll: third_party/pigweed pw_bluetooth_sapphire: Fix function sharing in gap

Share callback functions between PairingStateManager,
SecureSimplePairingState, and LegacyPairingState rather than
attempting to move a single instance between them (which was
being done incorrectly).

Original-Bug: b/383607012
Test: pw presubmit --step gn_chre_googletest_nanopb_sapphire_build
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/257332
Original-Revision: b8ef39264b328e375309f88b134b727a204aed69

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 3d4cd6424084ba..b8ef39264b328e
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8726753988383311185
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1b2eaf46181fa8b89b1108ad6026e4eaacd9ae35
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/257592
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 3d4cd64..b8ef392 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 3d4cd6424084ba92bf24f26eafede7db3e5637b6
+Subproject commit b8ef39264b328e375309f88b134b727a204aed69