[third_party/pigweed] Roll 16 commits

c59bb69e5e17000 pigweed_bluetooth: protocol.h comments tweak
460176817477441 bazel: Add missing Python deps
6b60968e9f25d23 pw_bluetooth: Add emboss ReadBufferSize v1 event
726eba580483b31 pw_channel: Seek is not async
46d35e297c33fdc pw_hdlc: Fix sitenav
a3591c5b35b18cd pw_toolchain: LLVM compiler-rt builtins
64ac90b74d9e8c7 docs: Generate doxygen html output locally
03aef93f460f15c pw_libc: Include strncpy
fe3fd13e05aaec2 pw_bluetooth: Add emboss contributing section to d
f55c3650f6b2cca pw_presubmit: Skip gn_teensy_build on mac-arm64
59c46d828848519 pw_channel: Set closed bit on FAILED_PRECONDITION
1a0707ec7f1aaf7 pw_channel: Respect sibling closure
ff2cbf8c82c8a69 bazel: Localize remaining backend label flags
8ac329d75f93ded pw_rpc: List dependencies directly
1800d2b0c585e66 pw_allocator: Add Capabilities
952697359bd0857 pw_build_info: Fix Bazel baremetal compatibility

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: c6c4a5bbeef2f11..c59bb69e5e17000
Roller-URL: https://ci.chromium.org/b/8752414771697007425
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I5eeec92e528c55c2f26a906565c7f9b6ec59dad0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/199605
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 c6c4a5b..c59bb69 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit c6c4a5bbeef2f11b88a754a4cbc0270f18df79d7
+Subproject commit c59bb69e5e17000c4120e26c7fc26c309d9f28ce