[roll third_party/pigweed] pw_rpc: Hold lock while calling internal on_completed wrapper

- Hold the lock while invoking a wrapped on_completed function. The
  wrapped function decodes the proto to a struct and then releases the
  lock before calling the user's callback.
- Remove duplicate active() checks in Nanopb and pwpb call classes.

Original-Bug: b/234876851
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/126213

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: bb565630a3d48f4..adc77a345db134d
Roller-URL: https://ci.chromium.org/b/8792199694062676561
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icf41cab11b3ae0a5b7cefa42d46dbb653e03d185
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/126480
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index bb56563..adc77a3 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit bb565630a3d48f49e833d237d44406b50561598d
+Subproject commit adc77a345db134d07c5ff3e5af4affae4e7ea21b