roll: pigweed pw_build: Add pw_rust_bindgen

Original-Bug: 365470545

Implement pw_rust_bindgen. A simple test case for generating C bindings
is added.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/234671
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 1f2a0feb81000531f1ae7e9e26a845609c1beb78

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 819dd2ceb430ea..1f2a0feb810005
Roller-URL: https://ci.chromium.org/b/8735764620236361697
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I5a4b7b40f2b43ebcdf7b5d22d335b51d2362b81c
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/237909
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 f5fe446..4aac733 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -48,18 +48,18 @@
 git_override(
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
-    # ROLL: Last updated 2024-09-25.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735782558411710241.
-    commit = "819dd2ceb430eae53909bea7d5a23c7743ef0fc2",
+    # ROLL: Last updated 2024-09-26.
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735764620236361697.
+    commit = "1f2a0feb81000531f1ae7e9e26a845609c1beb78",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
 git_override(
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
-    # ROLL: Last updated 2024-09-25.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8735782558411710241.
-    commit = "819dd2ceb430eae53909bea7d5a23c7743ef0fc2",
+    # ROLL: Last updated 2024-09-26.
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8735764620236361697.
+    commit = "1f2a0feb81000531f1ae7e9e26a845609c1beb78",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )