roll: pigweed pw_function: Fix implicit conversion warnings

Original-Bug: 259746255
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/409852
Original-Revision: 902ba7a4de843b5fc5787f2b4761dc4f8d9cd853

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: c6476d26797ba0..902ba7a4de843b
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8680511316489410849
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I201cc680f92691fb4c3cfacd2aca5ebe9d6f6b68
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/415114

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index 94830de..c9a4ee8 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -42,7 +42,7 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated by
     # ROLL: https://cr-buildbucket.appspot.com/builder/pigweed/quickstart.roll/pigweed-quickstart-bazel-roller
-    commit = "c6476d26797ba0bb24a14a1554a9607772eb4148",
+    commit = "902ba7a4de843b5fc5787f2b4761dc4f8d9cd853",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )