Merge gemfile changes

Gemfile

@@ -4,6 +4,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 ruby '2.6.1'
 
 gem 'rails'
+gem 'sqlite3'
 gem 'pg'
 gem 'puma'
 gem 'sass-rails'

Gemfile.lock

@@ -213,6 +213,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    sqlite3 (1.4.2)
     thor (1.0.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
@@ -252,6 +253,7 @@ DEPENDENCIES
   sentry-raven
   spring
   spring-watcher-listen
+  sqlite3
   turbolinks
   tzinfo-data
   webpacker