Upgrade capybara to 3.18 (#2529) [ci skip]

Gemfile

@@ -119,7 +119,7 @@ group :development do
 end
 
 group :development, :test do
-  gem "capybara", "~> 3.13" # Capybara is an integration testing tool for rack based web applications
+  gem "capybara", "~> 3.18" # Capybara is an integration testing tool for rack based web applications
   gem "faker", "~> 1.9" # A library for generating fake data such as names, addresses, and phone numbers
   gem "parallel_tests", "~> 2.28" # Run Test::Unit / RSpec / Cucumber / Spinach in parallel
   gem "pry-byebug", "~> 3.7" # Combine 'pry' with 'byebug'. Adds 'step', 'next', 'finish', 'continue' and 'break' commands to control execution

Gemfile.lock

@@ -169,7 +169,7 @@ GEM
       bundler (~> 1.2)
       thor (~> 0.18)
     byebug (11.0.0)
-    capybara (3.13.2)
+    capybara (3.18.0)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)
@@ -736,7 +736,7 @@ GEM
     recaptcha (4.13.2)
       json
     redcarpet (3.4.0)
-    regexp_parser (1.3.0)
+    regexp_parser (1.4.0)
     representable (3.0.4)
       declarative (< 0.1.0)
       declarative-option (< 0.2.0)
@@ -980,7 +980,7 @@ DEPENDENCIES
   buffer (~> 0.1)
   bullet (~> 5.9)
   bundler-audit (~> 0.6)
-  capybara (~> 3.13)
+  capybara (~> 3.18)
   carrierwave (~> 1.3)
   carrierwave-bombshelter (~> 0.2)
   cld (~> 0.8)