add configure(parser: Synvert::PRISM_PARSER) to generated snippet

Author: flyerhzm

lib/synvert/command.rb

@@ -118,6 +118,8 @@ def generate_snippet(snippet_name)
           # frozen_string_literal: true
 
           Synvert::Rewriter.new '#{group}', '#{name}' do
+            configure(parser: Synvert::PRISM_PARSER)
+
             description <<~EOS
               It converts Foo to Bar
 

spec/synvert/command_spec.rb

@@ -85,6 +85,8 @@ module Synvert
           # frozen_string_literal: true
 
           Synvert::Rewriter.new 'ruby', 'foobar' do
+            configure(parser: Synvert::PRISM_PARSER)
+
             description <<~EOS
               It converts Foo to Bar