Bump flate2 from 1.0.22 to 1.0.25 in /ruby

Bumps [flate2](https://github.com/rust-lang/flate2-rs) from 1.0.22 to 1.0.25.
- [Release notes](https://github.com/rust-lang/flate2-rs/releases)
- [Commits](rust-lang/flate2-rs@1.0.22...1.0.25)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]