Update gems (#209)

Author: sman591

Gemfile

@@ -11,7 +11,7 @@ gem 'mysql2', '>= 0.4.4', '< 0.6.0'
 # Use Puma as the app server
 gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
-gem 'sass-rails', '~> 5.0'
+gem 'sass-rails', '~> 6.0'
 # Use Uglifier as compressor for JavaScript assets
 gem 'uglifier', '>= 1.3.0'
 # See https://github.com/rails/execjs#readme for more supported runtimes
@@ -75,7 +75,7 @@ gem 'validate_url'
 gem 'audited', '~> 4.7'
 
 # Background job processing
-gem 'sidekiq', '< 6'
+gem 'sidekiq', '< 7'
 gem 'sidekiq-cron', '~> 1.1'
 
 # Misc support gems