roll: pigweed pw_rpc2: Truncate oversized handshake packet buffers

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/482670
Original-Revision: d6640a206bf18e78c3b965a03c71aabea67cf5b2

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 3d3bb6ecc4ad31..d6640a206bf18e
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8669913732399620705
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I8efe15107433557b467109359ace314a5846d313
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/483149
diff --git a/MODULE.bazel b/MODULE.bazel
index 4a575f0..06f06a1 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -41,8 +41,8 @@
 git_override(
     module_name = "pigweed",
     # ROLL: Warning: this is automatically updated by
-    # ROLL: https://cr-buildbucket.appspot.com/build/8669924577424935345
-    commit = "3d3bb6ecc4ad3113e6a3b2bb02212a421a3c180f",
+    # ROLL: https://cr-buildbucket.appspot.com/build/8669913732399620705
+    commit = "d6640a206bf18e78c3b965a03c71aabea67cf5b2",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )