Bump capybara from 3.18.0 to 3.19.1

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.18.0 to 3.19.1.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.18.0...3.19.1)

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

Gemfile.lock

@@ -96,7 +96,7 @@ GEM
       capistrano (~> 3.7)
       capistrano-bundler
       puma (~> 3.4)
-    capybara (3.18.0)
+    capybara (3.19.1)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)