[roll third_party/pigweed] pw_sync: migrate docs to use list tables

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/39912

third_party/pigweed Rolled-Commits: 3b9eca49b06c923..fe7006641b1fbda
Roller-URL: https://ci.chromium.org/b/8851012714131901568
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8851012714131901568
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I992a251d372aea22eb10d3b00ded584cb9f703b0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/39918
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 3b9eca4..fe70066 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 3b9eca49b06c923d8dbee72d092572aa66844e0c
+Subproject commit fe7006641b1fbda3d30d55188d88d09e365b2305