Update Gemfile

Gemfile

@@ -6,9 +6,8 @@ gem "activesupport", "~> 6.1.0"
 gem "redis", "~> 4.6.0"
 gem "rest-client", "~> 2.1.0"
 gem "aws-sigv4", "~> 1.0.0"
-# Remove require when we can update to 3.0, which sets the new storage
-# format to columnar by default. Increases performance
 gem "mime-types"
+gem "rainbows"
 
 group :test do
   gem 'rake'
@@ -20,6 +19,5 @@ group :test do
 end
 
 group :staging, :production do
-  gem "rainbows"
   gem "sentry-raven", require: false
 end