Arel::Table changes in rails 7.1

Rails 7.1 removed the table_name alias to name so just use name:
See: https://www.github.com/rails/rails/pull/46864

Rails 7.1 removed the writer for the table_alias so set the instance
variable. We will need to see if there is a way to do this that's less brittle.
See: https://www.github.com/rails/rails/pull/48927

Author: jrafanie

lib/active_record/virtual_attributes/virtual_delegates.rb

@@ -271,11 +271,11 @@ def self.select_from_alias(to_ref, col, to_model_col_name, src_model_id)
       def self.select_from_alias_table(to_klass, src_relation)
         to_table = to_klass.arel_table
         # if a self join, alias the second table to a different name
-        if to_table.table_name == src_relation.table_name
+        if to_table.name == src_relation.name
           # use a dup to not modify the primary table in the model
           to_table = to_table.dup
           # use a table alias to not conflict with table name in the primary query
-          to_table.table_alias = "#{to_table.table_name}_sub"
+          to_table.instance_variable_set(:@table_alias, "#{to_table.name}_sub")
         end
         to_table
       end