Fix SignedUrlGenerators module loading by removing from collapsed directories

The SignedUrlGenerators namespace needs to exist for Zeitwerk to properly load the classes within it. By removing it from the collapsed directories list, Zeitwerk will create the module namespace automatically.

Author: vipulnsward

lib/uploadcare.rb

@@ -11,7 +11,6 @@ module Uploadcare
   @loader = Zeitwerk::Loader.for_gem
   @loader.collapse("#{__dir__}/uploadcare/resources")
   @loader.collapse("#{__dir__}/uploadcare/clients")
-  @loader.collapse("#{__dir__}/uploadcare/signed_url_generators")
   @loader.setup
 
   class << self