Ensures this gem works with Rails 7, Ruby 3, and BL 8. (#61)

* Ensures this gem works with Rails 7, Ruby 3, and BL 8.

* Up to 9.

* removes rspec 'allow'

Author: bwatson78

blacklight-access_controls.gemspec

@@ -3,7 +3,7 @@ version = File.read(File.expand_path('../VERSION', __FILE__)).strip
 module Blacklight
   module AccessControls
     def self.bl_version
-      ENV['BLACKLIGHT_VERSION'] ? [ENV['BLACKLIGHT_VERSION']] : ['> 6.0', '< 8']
+      ENV['BLACKLIGHT_VERSION'] ? [ENV['BLACKLIGHT_VERSION']] : ['> 6.0', '< 9']
     end
   end
 end

lib/blacklight/access_controls/enforcement.rb

@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+require 'deprecation'
 
 module Blacklight
   module AccessControls
@@ -15,11 +16,11 @@ module Enforcement
       extend ActiveSupport::Concern
 
       included do
-        extend Deprecation
+        extend ::Deprecation
         attr_writer :current_ability, :discovery_permissions
         deprecation_deprecate :current_ability=
 
-        Deprecation.warn(self, 'Blacklight::AccessControls::Enforcement is deprecated and will be removed in 1.0')
+        ::Deprecation.warn(self, 'Blacklight::AccessControls::Enforcement is deprecated and will be removed in 1.0')
         class_attribute :solr_access_filters_logic
         alias_method :add_access_controls_to_solr_params, :apply_gated_discovery