[roll pigweed] pw_env_setup: Require Python 3.8 compatibility

Also explicitly specify platforms.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/107630

https://pigweed.googlesource.com/pigweed/pigweed
pigweed Rolled-Commits: a7a9307ba024188..8d21bcb69fd9c01
Roller-URL: https://ci.chromium.org/b/8805361068641590241
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4a9f9a4fb194d457d622cd7d60a185a408efe566
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/107657
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: 1db3439548498913e3d357ea4790230c4ed0f6ad
  1. .gitmodules
  2. test.sh