fix: Gemfile to reduce vulnerabilities (#18)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-1055008

Gemfile

@@ -18,11 +18,11 @@ gem 'bootstrap-sass', '~> 3.4'
 gem 'bundler'
 gem 'coffee-rails', '~> 5.0', '>= 5.0.0'
 gem 'devise', '~> 4.7', '>= 4.7.1'
-gem 'devise-i18n', '>= 1.9.0'
+gem 'devise-i18n', '>= 1.9.1'
 gem 'doorkeeper', '~> 4.4', '>= 4.4.3'
 gem 'doorkeeper-i18n'
 gem 'haml', '~> 5.0'
-gem 'jquery-rails', '~> 4.3', '>= 4.3.5'
+gem 'jquery-rails', '~> 4.4', '>= 4.4.0'
 gem 'jquery-ui-rails', '~> 6.0', '>= 6.0.1'
 gem 'newrelic_rpm'
 gem 'omniauth'
@@ -56,7 +56,7 @@ group :development do
   gem 'bullet', '>= 6.1.0'
   gem 'byebug'
   gem 'foreman'
-  gem 'lol_dba', '>= 2.1.9'
+  gem 'lol_dba', '>= 2.2.0'
   gem 'pry'
   gem 'rack-livereload'
   gem 'web-console', '>= 3.7.0'
@@ -65,7 +65,7 @@ end
 group :test do
   gem 'codeclimate-test-reporter', '~> 1.0.8'
   gem 'email_spec'
-  gem 'factory_bot_rails', '>= 5.1.1'
+  gem 'factory_bot_rails', '>= 5.2.0'
   gem 'shoulda-matchers', '>= 4.3.0', require: false
   gem 'simplecov', '>= 0.13.0'
 end
@@ -82,7 +82,7 @@ group :development, :test do
   gem 'rb-inotify', require: linux_only('rb-inotify')
   gem 'rspec-collection_matchers'
   gem 'rspec-its'
-  gem 'rspec-rails', '>= 3.9.1'
+  gem 'rspec-rails', '>= 4.0.1'
   gem 'rubocop'
   gem 'rubocop-rspec'
   gem 'selenium-webdriver'