[roll pigweed] pw_system: Disable FreeRTOS task statics

Enables the pw_third_party_freertos_DISABLE_TASKS_STATICS flag when
using pw_system so that thread iteration is supported out-of-the-box.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/107830

https://pigweed.googlesource.com/pigweed/pigweed
pigweed Rolled-Commits: 372139347d6b2b7..c8a83ce57e4c790
Roller-URL: https://ci.chromium.org/b/8805000709634119409
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iaff3c19441691aff3c1dcfc453d247b760cfac49
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/107989
Bot-Commit: 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/pigweed b/pigweed
index 3721393..c8a83ce 160000
--- a/pigweed
+++ b/pigweed
@@ -1 +1 @@
-Subproject commit 372139347d6b2b7a1eee8c15237d519b2363a090
+Subproject commit c8a83ce57e4c790fc62c90404f1aef9ffa949925