[roll third_party/pigweed] pw_env_setup: Pin pip and pip-tools

Set pip and pip-tools to known working versions. pip==23.3 is causing
some dependency resolution problems.

See: jazzband/pip-tools#2003

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/177834

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: f3190dcd2b5a44c..e6aa95bf08fba2b
Roller-URL: https://ci.chromium.org/b/8766227687933402801
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ib2dfc9900e67a934493b29834495bf406625ebaa
Reviewed-on: https://pigweed-review.googlesource.com/c/example/echo/+/177773
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>