roll: pigweed pw_toolchain: Switch arm_clang to rules_cc toolchains

Switches the arm_clang toolchain to use rules_cc toolchains.

Original-Bug: b/346388161
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/237196
Original-Revision: 60e7e4fa95cbabcd0b6cb8948d90d8ba15e92919

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 7d78c549c47d4b..60e7e4fa95cbab
Roller-URL: https://ci.chromium.org/b/8734519763574921041
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ic92ade74ebab949add3c8d025f4ea22192bda47a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/showcase/sense/+/241253
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/MODULE.bazel b/MODULE.bazel
index 6977a0a..4a90055 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -49,8 +49,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-10-09.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8734530380830975585.
-    commit = "7d78c549c47d4bcd4a726b856013fede6f2ea891",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8734519763574921041.
+    commit = "60e7e4fa95cbabcd0b6cb8948d90d8ba15e92919",
     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 2024-10-09.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8734530380830975585.
-    commit = "7d78c549c47d4bcd4a726b856013fede6f2ea891",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8734519763574921041.
+    commit = "60e7e4fa95cbabcd0b6cb8948d90d8ba15e92919",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )