roll: third_party/pigweed pw_system: Add `debugger-listen` and `debugger-wait-for-client` options

Add debugpy to pw_system console to ease attaching the VS code python
debugger to the console.  This is especially useful when the console is
invoked from inside a bazel sandox, for example:
`bazelisk run //pw_system:rp2350_system_example_console -- --debugger-listen`.

- `--debugger-listen` will start the listener on localhost:5678

- `--debugger-wait-for-client` will start the listener on localhost:5678 and halts the console
  until a debugger attaches. `--debugger-listen` is no required when `--debugger-wait-for-client`
  is specified..

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/233752
Original-Revision: fd6b7a96cd142fcfbf979c2ebf3ea4ac2e342612

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 7698704f57a69f..fd6b7a96cd142f
Roller-URL: https://ci.chromium.org/b/8734618786253365857
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icb9ff66cb078905bd379aae5740a1fa29e781d96
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/240853
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 7698704..fd6b7a9 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 7698704f57a69ff5a913f0b2d43d3cc419d10446
+Subproject commit fd6b7a96cd142fcfbf979c2ebf3ea4ac2e342612