OPS-3826: Relax Restforce pin for Gem updates

CHANGELOG.md

@@ -54,4 +54,7 @@
 * Changed salesforce_ar_sync to use bang (!) versions of Restforce CRUD methods to raise errors on Salesforce save failures instead of returning false.
 
 # Version 5.3.1
-* Fix race condition in app-level upsert by retrying on ActiveRecord::RecordNotUnique
+* Fix race condition in app-level upsert by retrying on ActiveRecord::RecordNotUnique
+
+# Version 5.3.2
+* Relax restforce pin.

lib/salesforce_ar_sync/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module SalesforceArSync
-  VERSION = '5.3.1'
+  VERSION = '5.3.2'
 end

salesforce_ar_sync.gemspec

@@ -25,5 +25,5 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'vcr'
   gem.add_development_dependency 'webmock'
 
-  gem.add_runtime_dependency 'restforce', '~> 5.0.5'
+  gem.add_runtime_dependency 'restforce', '>= 5.0.5', '< 9.0'
 end