Bump faker from 2.7.0 to 2.8.0 (#12531)

Bumps [faker](https://github.com/faker-ruby/faker) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/faker-ruby/faker/releases)
- [Changelog](https://github.com/faker-ruby/faker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/faker-ruby/faker/compare/v2.7.0...v2.8.0)

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

Gemfile

@@ -116,7 +116,7 @@ end
 group :test do
   gem 'capybara', '~> 3.29'
   gem 'climate_control', '~> 0.2'
-  gem 'faker', '~> 2.7'
+  gem 'faker', '~> 2.8'
   gem 'microformats', '~> 4.1'
   gem 'rails-controller-testing', '~> 1.0'
   gem 'rspec-sidekiq', '~> 3.0'

Gemfile.lock

@@ -240,7 +240,7 @@ GEM
       tzinfo
     excon (0.62.0)
     fabrication (2.21.0)
-    faker (2.7.0)
+    faker (2.8.0)
       i18n (>= 1.6, < 1.8)
     faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
@@ -710,7 +710,7 @@ DEPENDENCIES
   doorkeeper (~> 5.2)
   dotenv-rails (~> 2.7)
   fabrication (~> 2.21)
-  faker (~> 2.7)
+  faker (~> 2.8)
   fast_blank (~> 1.0)
   fastimage
   fog-core (<= 2.1.0)