tests: fix rails 2.7 keyword parameter deprecation warnings.

app/logical/pagination_extension.rb

@@ -13,10 +13,10 @@ module PaginationExtension
       @paginator_count = 1_000_000
     end
 
-    if page =~ /\Ab(\d+)\z/i
+    if page.to_s =~ /\Ab(\d+)\z/i
       @paginator_mode = :sequential_before
       paginate_sequential_before($1, records_per_page)
-    elsif page =~ /\Aa(\d+)\z/i
+    elsif page.to_s =~ /\Aa(\d+)\z/i
       @paginator_mode = :sequential_after
       paginate_sequential_after($1, records_per_page)
     else

app/logical/table_builder.rb

@@ -49,8 +49,8 @@ class TableBuilder
     yield self if block_given?
   end
 
-  def column(*args, **options, &block)
-    @columns << Column.new(*args, **options, &block)
+  def column(...)
+    @columns << Column.new(...)
   end
 
   def all_row_attributes(item, i)