Bump geocoder from 1.8.3 to 1.8.6

Bumps [geocoder](https://github.com/alexreisner/geocoder) from 1.8.3 to 1.8.6.
- [Changelog](https://github.com/alexreisner/geocoder/blob/master/CHANGELOG.md)
- [Commits](https://github.com/alexreisner/geocoder/compare/v1.8.3...v1.8.6)

---
updated-dependencies:
- dependency-name: geocoder
  dependency-version: 1.8.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -254,7 +254,7 @@ GEM
     crass (1.0.6)
     css_parser (1.21.1)
       addressable
-    csv (3.3.0)
+    csv (3.3.5)
     cuprite (0.15)
       capybara (~> 3.0)
       ferrum (~> 0.14.0)
@@ -362,7 +362,7 @@ GEM
     fuubar (2.5.1)
       rspec-core (~> 3.0)
       ruby-progressbar (~> 1.4)
-    geocoder (1.8.3)
+    geocoder (1.8.6)
       base64 (>= 0.1.0)
       csv (>= 3.0.0)
     globalid (1.3.0)