[roll pigweed] pw_build: Build upstream Pigweed code with -Wpedantic

- Enable pedantic warnings for upstream Pigweed builds.
- Use std::array instead of C arrays in pw_protobuf codegen to avoid
  zero-length arrays.
- Cast pointers to void* when using %p in printf-style statements.
- Do not create empty structs in C.
- Do not return void expressions in C.
- Disable pedantic warnings related to features added in newer C++
  standards (designated initializers, empty variadic arguments in
  macros).
- Temporarily disable the nested-anon-types warning until these issues
  are fixed (b/243045403).

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/107390

https://pigweed.googlesource.com/pigweed/pigweed
pigweed Rolled-Commits: 0f693fcf19fb0eb..1e67862f9dd32d8
Roller-URL: https://ci.chromium.org/b/8805377117894184625
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I0746ad12ea276903e1cbfb8fdc6a2483abbd4307
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/107640
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/pigweed b/pigweed
index 0f693fc..1e67862 160000
--- a/pigweed
+++ b/pigweed
@@ -1 +1 @@
-Subproject commit 0f693fcf19fb0eb67336d4bdf04099ef46383ef9
+Subproject commit 1e67862f9dd32d8ec42e2616223d80f208d5c14b