roll: third_party/pigweed: pw_tokenizer: Set prefix in Detokenizer; fix typing issues

- Previously, the detokenization prefix was passed in as a function
  argument. Set it in the Detokenizer instead to simplify these
  functions.
- Add missing type annotations and fix issues identified by Mypy.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/234311

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: bce3cdbb55763e7..13eef66fafd043a
Roller-URL: https://ci.chromium.org/b/8737590229021634529
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I67e3a491f1a2f406ce756470f0176cf98c27e754
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/234332
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index bce3cdb..13eef66 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit bce3cdbb55763e7968f45728205f58bb0732352f
+Subproject commit 13eef66fafd043aef1f875da8383fb68b2439170