Bump bzip2 from 0.4.3 to 0.4.4 (#94)

Bumps [bzip2](https://github.com/alexcrichton/bzip2-rs) from 0.4.3 to 0.4.4.
- [Release notes](https://github.com/alexcrichton/bzip2-rs/releases)
- [Commits](https://github.com/alexcrichton/bzip2-rs/commits/0.4.4)

---
updated-dependencies:
- dependency-name: bzip2
  dependency-type: direct:production
...

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