build(deps): bump flate2 from 1.0.26 to 1.0.28

Bumps [flate2](https://github.com/rust-lang/flate2-rs) from 1.0.26 to 1.0.28.
- [Release notes](https://github.com/rust-lang/flate2-rs/releases)
- [Commits](rust-lang/flate2-rs@1.0.26...1.0.28)

---
updated-dependencies:
- dependency-name: flate2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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