[Bug] Collection option for time zone input doesn't limit the selection

Environment

• Ruby 3.2.2
• Rails 7.0
• Simple Form 5.3.1

Code sample

f.input :time_zone, as: :time_zone, 
  collection: ["London", "Berlin"].map { ActiveSupport::TimeZone[_1] }, 
  include_blank: false

Current behavior

Renders all time zones as options

Expected behavior

Renders only specified time zones selection.