Bump ffi from 1.16.3 to 1.17.0 in /steep

Bumps [ffi](https://github.com/ffi/ffi) from 1.16.3 to 1.17.0.
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](ffi/ffi@v1.16.3...v1.17.0)

---
updated-dependencies:
- dependency-name: ffi
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

steep/Gemfile.lock

@@ -19,7 +19,7 @@ GEM
     connection_pool (2.4.1)
     csv (3.3.0)
     drb (2.2.1)
-    ffi (1.16.3)
+    ffi (1.17.0)
     fileutils (1.7.2)
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)