[roll third_party/pigweed] pw_web: Fix TypeScript warnings

Original-Fixes:
- Message proto not having serializeBinary() method
- Uint8Array needs a size argument
- Proto import with curly braces

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/162095

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 9231b05b13226c9..4b4f0a763d90d0e
Roller-URL: https://ci.chromium.org/b/8773916552206219377
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia16933bc1cc37b71c611fae0c894d42ca870ec77
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/162251
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 9231b05..4b4f0a7 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 9231b05b13226c94f36e43c9497a0c642d8bb66d
+Subproject commit 4b4f0a763d90d0e7834407a31ba721c92a3de8fb