roll: pigweed 3d9d23f..efd4d76 (2 commits)

efd4d76:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/412392 pw_kernel: Clarify process state names and behavior
e1154a5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/411934 bazel: Roll to rules_mypy@0.41.0

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 3d9d23fdddfdaf..efd4d7603a4fc3
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8681118142159282385
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I7bf74cf304d8786bb6babcd580743ef3c0c0adda
Reviewed-on: https://pigweed-review.googlesource.com/c/zephyr/zephyr-bazel/+/412973