fix: remove arel-helpers to enable Rails 8 compatibility (#696)

Author: matthv

Gemfile

@@ -26,7 +26,6 @@ end
 gem 'rails', '6.1.7.9'
 gem 'forestadmin-jsonapi-serializers'
 gem 'rack-cors'
-gem 'arel-helpers', '2.14.0'
 gem 'groupdate', '5.2.2'
 gem 'useragent'
 gem 'jwt'

Gemfile.lock

@@ -2,7 +2,6 @@ PATH
   remote: .
   specs:
     forest_liana (9.5.0)
-      arel-helpers
       bcrypt
       deepsort
       forestadmin-jsonapi-serializers (>= 0.14.0)
@@ -80,8 +79,6 @@ GEM
       tzinfo (~> 2.0)
       zeitwerk (~> 2.3)
     aes_key_wrap (1.1.0)
-    arel-helpers (2.14.0)
-      activerecord (>= 3.1.0, < 8)
     attr_required (1.0.1)
     base64 (0.2.0)
     bcrypt (3.1.18)
@@ -263,7 +260,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  arel-helpers (= 2.14.0)
   bcrypt
   byebug
   deepsort

config/initializers/arel-helpers.rb

@@ -21,7 +21,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency "forestadmin-jsonapi-serializers", ">= 0.14.0"
   s.add_runtime_dependency "jwt"
   s.add_runtime_dependency "rack-cors"
-  s.add_runtime_dependency "arel-helpers"
   s.add_runtime_dependency "groupdate", ">= 5.0.0"
   s.add_runtime_dependency "useragent"
   s.add_runtime_dependency "bcrypt"