roll: pigweed pw_thread: Migrate from pw::thread::Thread to pw::Thread

Update documentation and code to use the new pw::Thread name instead of
pw::thread::Thread where possible.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/236723
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 2a0f0dfccc19b86a686777afa647b0c75a87c863

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a9f2d91c85fe01..2a0f0dfccc19b8
Roller-URL: https://ci.chromium.org/b/8735624306887980289
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I905933c3625c5cc0f464aa4e840370f719bbed0f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/238476
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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/MODULE.bazel b/MODULE.bazel
index 21a1bca..9835b4f 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -49,8 +49,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-27.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735626518794800801.
-    commit = "a9f2d91c85fe017e27ec94b7502984818cc7c723",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735624306887980289.
+    commit = "2a0f0dfccc19b86a686777afa647b0c75a87c863",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
@@ -58,8 +58,8 @@
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-27.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735626518794800801.
-    commit = "a9f2d91c85fe017e27ec94b7502984818cc7c723",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735624306887980289.
+    commit = "2a0f0dfccc19b86a686777afa647b0c75a87c863",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )