Bump ffi from 1.17.0 to 1.17.1 (#122)

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: direct:production
  update-type: version-update:semver-patch
...

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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 (1.17.0)
+    ffi (1.17.1)
     rake (13.2.1)
     rgeo (2.3.0)
     rgeo-geojson (2.1.1)