Build(deps): Bump ffi from 1.15.5 to 1.16.1

Bumps [ffi](https://github.com/ffi/ffi) from 1.15.5 to 1.16.1.
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](ffi/ffi@v1.15.5...v1.16.1)

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

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

Gemfile.lock

@@ -152,7 +152,7 @@ GEM
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
-    ffi (1.15.5)
+    ffi (1.16.1)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake