Update pg gem

Author: excid3

Gemfile

@@ -9,7 +9,7 @@ end
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.1.2'
 # Use postgresql as the database for Active Record
-gem 'pg', '~> 0.18'
+gem 'pg', '~> 1.2', '>= 1.2.3'
 # Use Puma as the app server
 gem 'puma', '~> 3.0'
 # Use SCSS for stylesheets

Gemfile.lock

@@ -91,7 +91,7 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.10.1)
       mini_portile2 (~> 2.4.0)
-    pg (0.21.0)
+    pg (1.2.3)
     popper_js (1.14.5)
     puma (3.12.0)
     rack (2.0.6)