roll: third_party/pigweed 675208e..a1e03da (6 commits)

a1e03da:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/242152 pw_uuid: Add new UUID module
54b73a2:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/291973 pw_kernel: Add putc syscall
88088b1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/291972 pw_tokenizer: Encode char as varint in rust
7e25bc1:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/263373 pw_build: Optional Bazel-style sandboxing for CMake
866cbb9:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/292037 docs: Update the default_bazel target
440bcbf:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/289984 third_party/fuchsia: Copybara import

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 675208e825d80f..a1e03da2c0a45d
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8714753556319499265
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I665c8e43b83b30e0adb49000a0697a4e4ae17995
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/292132
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 675208e..a1e03da 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 675208e825d80f8415ab71a5af70a3c7780ed072
+Subproject commit a1e03da2c0a45dc66b6e288febb87b398a7bef06