Replace factory_girl_rails with factory_bot_railsrc/use-factory_bot_rails

I've followed the [upgrade guide](https://github.com/thoughtbot/factory_bot/blob/4-9-0-stable/UPGRADE_FROM_FACTORY_GIRL.md) and ran these two commands:

```
grep -e FactoryGirl **/*.rake **/*.rb -s -l | xargs sed -i "" "s|FactoryGirl|FactoryBot|"
grep -e factory_girl **/*.rake **/*.rb -s -l | xargs sed -i "" "s|factory_girl|factory_bot|"
```

Signed-off-by: Rémy Coutable <remy@rymai.me>

1 files changed, 1 insertions, 1 deletions

diff --git a/Gemfile b/Gemfile
index e9701fab27a..adfbb4cd530 100644
--- a/Gemfile
+++ b/Gemfile
@@ -311,7 +311,7 @@ group :development, :test do
   gem 'fuubar', '~> 2.2.0'
 
   gem 'database_cleaner', '~> 1.5.0'
-  gem 'factory_girl_rails', '~> 4.7.0'
+  gem 'factory_bot_rails', '~> 4.8.2'
   gem 'rspec-rails', '~> 3.6.0'
   gem 'rspec-retry', '~> 0.4.5'
   gem 'spinach-rails', '~> 0.2.1'