[roll third_party/pigweed] pw_polyfill: Provide static_assert polyfill for C

- Provide C23-style static_assert with an optional message argument in
  any version of C.
- Remove <assert.h> includes in favor of pw_polyfill/static_assert.h.
- Move the pw_tokenizer-specific static_assert definition to
  pw_polyfill.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/188137

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4df1a0780e47de9..0d006b2d8864259
Roller-URL: https://ci.chromium.org/b/8758605845550587105
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id29b9956244b85d48623cab2ece4c7386f46ca19
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/188209
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 4df1a07..0d006b2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4df1a0780e47de9b391e9d8b755d3438a672e4b4
+Subproject commit 0d006b2d8864259d37ec8a159e69091f64549932