Bump rails version to 5.2.5

Change-Id: I4199e92bd560ed9b6a72d5e0e8d5cf52575b65ef
Reviewed-on: https://gerrit.instructure.com/c/rollcall-attendance/+/262110
Tested-by: Service Cloud Jenkins <[email protected]>
Reviewed-by: Gary Mei <[email protected]>
Product-Review: Syed Hussain <[email protected]>
QA-Review: Adrian Packel <[email protected]>

Author: Adrian Packel

Gemfile

@@ -19,7 +19,7 @@ source 'https://rubygems.org'
 
 gem 'bundler', '>= 1.7.10'
 
-gem 'rails', '~> 5.2.0'
+gem 'rails', '~> 5.2.5'
 gem 'rack', '~> 2.1'
 gem 'bootsnap', '~> 1.0', require: false