lock sqlite version to "~> 1.3.6" for integration tests

Author: grantspeelman

spec/integrations/rails_5_2/Gemfile

@@ -3,7 +3,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.0'
-gem 'sqlite3'
+gem 'sqlite3', '~> 1.3.6'
 
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', '>= 1.1.0', require: false