Bump ffi from 1.17.0 to 1.17.1 in /steep

Bumps [ffi](https://github.com/ffi/ffi) from 1.17.0 to 1.17.1.
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ffi/ffi/commits)

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

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

steep/Gemfile.lock

@@ -22,7 +22,7 @@ GEM
     connection_pool (2.4.1)
     csv (3.3.2)
     drb (2.2.1)
-    ffi (1.17.0)
+    ffi (1.17.1)
     fileutils (1.7.3)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)