[roll third_party/pigweed] pw_tokenizer: Ignore string nonliteral warnings

Ignore string nonliteral warnings for decoder

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/162092

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4b4f0a763d90d0e..93549eb6ce67bdd
Roller-URL: https://ci.chromium.org/b/8773863490002013473
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie7c8dc7e645d9371259656363ef9fa0274b211a7
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/162370
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 4b4f0a7..93549eb 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4b4f0a763d90d0e7834407a31ba721c92a3de8fb
+Subproject commit 93549eb6ce67bdd7663c28ef4971933a39f6e2c3