roll: pigweed pw_uart: Add pw::uart::UartStream

Original-Bug: 331603164
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/241200
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: b39ad5c71df860223a8f908219bfdcfbdda1e5f5

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 98667e8cfd9be6..b39ad5c71df860
Roller-URL: https://ci.chromium.org/b/8734353393393579121
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie179bdd9a6c547f59cfb8a3e00c993bd070baa9a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/241304
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/MODULE.bazel b/MODULE.bazel
index fc73b26..9c83c63 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -48,8 +48,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-10-11.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8734354591435268001.
-    commit = "98667e8cfd9be65e63e6551a489ff4b9974a71da",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8734353393393579121.
+    commit = "b39ad5c71df860223a8f908219bfdcfbdda1e5f5",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
@@ -57,8 +57,8 @@
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-10-11.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8734354591435268001.
-    commit = "98667e8cfd9be65e63e6551a489ff4b9974a71da",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8734353393393579121.
+    commit = "b39ad5c71df860223a8f908219bfdcfbdda1e5f5",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )