Update RBI files for minitest.

Library/Homebrew/sorbet/rbi/gems/minitest@5.15.0.rbi

@@ -1,9 +1,9 @@
+# typed: true
+
 # DO NOT EDIT MANUALLY
 # This is an autogenerated file for types exported from the `minitest` gem.
 # Please instead update this file by running `bin/tapioca gem minitest`.
 
-# typed: true
-
 module Minitest
   class << self
     def __run(reporter, options); end
@@ -292,6 +292,7 @@ class Minitest::Test < ::Minitest::Runnable
   def capture_exceptions; end
   def class_name; end
   def run; end
+  def sanitize_exception(e); end
   def with_info_handler(&block); end
 
   class << self