Bump ffi from 1.9.3 to 1.10.0

Bumps [ffi](https://github.com/ffi/ffi) from 1.9.3 to 1.10.0.
- [Release notes](https://github.com/ffi/ffi/releases)
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](ffi/ffi@1.9.3...1.10.0)

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

Gemfile.lock

@@ -32,7 +32,7 @@ GEM
     debug_inspector (0.0.2)
     diff-lcs (1.2.5)
     docile (1.1.3)
-    ffi (1.9.3)
+    ffi (1.10.0)
     formatador (0.2.4)
     gherkin (2.12.2)
       multi_json (~> 1.3)