[roll pigweed] pw_env_setup: Relax Python version requirements

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/93722

https://pigweed.googlesource.com/pigweed/pigweed
pigweed Rolled-Commits: 63b83f7d3de21b3..813fb533ab13f77
Roller-URL: https://ci.chromium.org/b/8809993143396206129
Cq-Cl-Tag: roller-builder:pigweed-zephyr-roller
Cq-Cl-Tag: roller-bid:8809993143396206129
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ifdd55c40f413ec55db465f75438311e428cfaff8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/100411
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 63b83f7..813fb53 160000
--- a/pigweed
+++ b/pigweed
@@ -1 +1 @@
-Subproject commit 63b83f7d3de21b3905a41065b912316d68d53c4d
+Subproject commit 813fb533ab13f779ec44bf568d1f77a34a7e170c