Resolve conflict for Prism::Translation::Parser#initialize

#3443 and #3478 conflicted,
resulting in different `initialize` method definitions.
This PR resolves the conflict and updates it to a unified `initialize` method.

Author: koic

lib/prism/translation/parser.rb

@@ -31,13 +31,10 @@ def initialize(message, level, reason, location)
         end
       end
 
-      # Create the parser with our custom builder class
-      def initialize(builder = Parser::Builder.new)
-        super
-      end
-
       Racc_debug_parser = false # :nodoc:
 
+      # The `builder` argument is used to create the parser using a custom builder class by default.
+      #
       # By using the `:parser` keyword argument, you can translate in a way that is compatible with
       # the Parser gem using any parser.
       #
@@ -61,7 +58,7 @@ def initialize(builder = Parser::Builder.new)
       # In an object passed to the `:parser` keyword argument, the `parse` and `parse_lex` methods
       # should be implemented as needed.
       #
-      def initialize(builder = ::Parser::Builders::Default.new, parser: Prism)
+      def initialize(builder = Parser::Builder.new, parser: Prism)
         @parser = parser
 
         super(builder)