[roll third_party/pigweed] pw_build: Remove instancing of pools across toolchains
The build system uses pools for mutual exclusion. Currently multiple
instances of these pools exist which defeats their purpose.
For example, it can cause concurrent instances of "pip install" which is
not safe.
Original-Bug: 390
No-Docs-Update-Reason: bug fix
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/48520
third_party/pigweed Rolled-Commits: df9a0c1acc6de49..da057f7f3ceb60e
Roller-URL: https://ci.chromium.org/b/8844835395560351697
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8844835395560351697
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I331f8cc8055fb96e7bd10844ebac4ddd1778c168
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/48488
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 df9a0c1..da057f7 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit df9a0c1acc6de49e0d272a8700a3b247c84e3f84
+Subproject commit da057f7f3ceb60ef56c3fe87133df6d25256f216
