Bump capybara from 3.14.0 to 3.15.0 (#10330)

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.14.0 to 3.15.0.
- [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/3.14.0...3.15.0)

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

Gemfile

@@ -107,7 +107,7 @@ group :production, :test do
 end
 
 group :test do
-  gem 'capybara', '~> 3.14'
+  gem 'capybara', '~> 3.15'
   gem 'climate_control', '~> 0.2'
   gem 'faker', '~> 1.9'
   gem 'microformats', '~> 4.1'

Gemfile.lock

@@ -127,7 +127,7 @@ GEM
       sshkit (~> 1.3)
     capistrano-yarn (2.0.2)
       capistrano (~> 3.0)
-    capybara (3.14.0)
+    capybara (3.15.0)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)
@@ -670,7 +670,7 @@ DEPENDENCIES
   capistrano-rails (~> 1.4)
   capistrano-rbenv (~> 2.1)
   capistrano-yarn (~> 2.0)
-  capybara (~> 3.14)
+  capybara (~> 3.15)
   charlock_holmes (~> 0.7.6)
   chewy (~> 5.0)
   cld3 (~> 3.2.3)