[third_party/pigweed] Roll 7 commits

efd9953c94acd1a roll: clang
c382dcf1602b355 pw_rpc: Add TryFinish API for pw_rpc stream
7df8e94ec97536e pw_rpc: Remove deprecated functions from Java clie
b95cc02594b74ea pw_sys_io_stm32cube: Fix build for f0xx, f1xx and
a6b8457ccb7422c pw_json: Move examples outside of the pw namespace
9e6bf8bf6a16fca third_party/stm32cube: Fix bazel hal driver build
b087cdb31f8d85b pw_unit_test: Adding googletest_handler_adapter to

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: f7c7c823a49dba8..efd9953c94acd1a
Roller-URL: https://ci.chromium.org/b/8753731484624874849
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I2b9ee2574ef23bb8810b0d4b325b66929f49de82
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/195918
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index f7c7c82..efd9953 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit f7c7c823a49dba895eca89c3163bcd39ac22c676
+Subproject commit efd9953c94acd1a40ce86bd40fe956334ea5d261