roll: third_party/pigweed pw_tokenizer: Replace base64ToBinaryString() with decode() in ts

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/466905
Original-Revision: 4728b9da9307d61d224844dd9c1c493f97b76c32

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 79c2915087b58c..4728b9da9307d6
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8671827812250971441
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie1c13539b301b883ee313bd2405860f2308516a1
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/467885

third_party/pigweed

diff --git a/third_party/pigweed b/third_party/pigweed
index 79c2915..4728b9d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 79c2915087b58c0d34f02df2ae4018d69add2b79
+Subproject commit 4728b9da9307d61d224844dd9c1c493f97b76c32