Release 4.0.0

[kbrock]

Hey @flavorjones - if you merge these notes, then w can release the next version

Added

• Add i18n support support i18n #230 @ryu-sato
• Add column_names method Add column names method #311 @hatsu38
• Add block support to count Add support for a block argument on Relation#count #317 @ashleyHutton
• Support ruby 3.4 Update CI with Ruby 3.4, fix Rails Logger constant resolution issue #328 @flavorjones
• Add :alias to has_many :through Has many through supports aliased names #329 @alexgriff
• Add Active Record 8.0 Update supported versions of Ruby and Rails #324 @flavorjones

Fixed

• Fix Do not suppress load errors#309 @andreynering
• Ensure field_names are all strings fix: ensure the stored field names are always symbols #312 @flavorjones
• Hide private add_default_value Make Default field private #314 @kbrock
• Fix exists?(nil) Fix the behavior when passing nil to exists? #320 @y-yagi
• Enance Enum support Implement automatic predicate method generation for ActiveHash::Enum #321 @hatsu38
• Updated docs Fix an example for resetting the state every request #326 @y-yagi

Removed

• Drop Active Record < 6.1. Ruby < 3.0 Update supported versions of Ruby and Rails #324 @flavorjones