Bump @pika/pack from 0.3.7 to 0.4.0 (#22)

Bumps [@pika/pack](https://github.com/pikapkg/pack) from 0.3.7 to 0.4.0.
- [Release notes](https://github.com/pikapkg/pack/releases)
- [Commits](FredKSchott/pika-pack@v0.3.7...v0.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]