pw_env_setup: PyPI version bump to 0.0.4
pw_env_setup: PyPI version bump to 0.0.4

Change-Id: I29155dc0a09abe228076675659428e6774bb504e
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/72260
Pigweed-Auto-Submit: Anthony DiGirolamo <4cc40125edc24ec5bc72df7917ea0b403ee8cebe@google.com>
Reviewed-by: Wyatt Hepler <cca3bedb37979eacd157a9bceb473582df8aea1e@google.com>
Commit-Queue: Anthony DiGirolamo <4cc40125edc24ec5bc72df7917ea0b403ee8cebe@google.com>

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed