Fix Style/ClassEqualityComparison cop (#30058)

app/helpers/jsonld_helper.rb

@@ -141,7 +141,7 @@ module JsonLdHelper
   def safe_for_forwarding?(original, compacted)
     original.without('@context', 'signature').all? do |key, value|
       compacted_value = compacted[key]
-      return false unless value.class == compacted_value.class
+      return false unless value.instance_of?(compacted_value.class)
 
       if value.is_a?(Hash)
         safe_for_forwarding?(value, compacted_value)