Bump ffi from 1.17.1 to 1.17.2 (#127)

Bumps [ffi](https://github.com/ffi/ffi) from 1.17.1 to 1.17.2.
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](ffi/ffi@v1.17.1...v1.17.2)

---
updated-dependencies:
- dependency-name: ffi
  dependency-version: 1.17.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -10,7 +10,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     diff-lcs (1.5.1)
-    ffi (1.17.1)
+    ffi (1.17.2)
     multi_json (1.15.0)
     rake (13.2.1)
     rgeo (3.0.0)