sorbet: Update RBI files.

Autogenerated by the [sorbet](https://github.com/Homebrew/brew/blob/master/.github/workflows/sorbet.yml) workflow.

Library/Homebrew/sorbet/rbi/gems/rspec-github@2.3.1.rbi

@@ -0,0 +1,8 @@
+# DO NOT EDIT MANUALLY
+# This is an autogenerated file for types exported from the `rspec-github` gem.
+# Please instead update this file by running `tapioca sync`.
+
+# typed: true
+
+# THIS IS AN EMPTY RBI FILE.
+# see https://github.com/Shopify/tapioca/blob/master/README.md#manual-gem-requires

Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi

@@ -21869,7 +21869,34 @@ module RSpec::Expectations
   def self.fail_with(message, expected=T.unsafe(nil), actual=T.unsafe(nil)); end
 end
 
+module RSpec::Github
+  VERSION = ::T.let(nil, ::T.untyped)
+end
+
 class RSpec::Github::Formatter
+  def example_failed(failure); end
+
+  def example_pending(pending); end
+end
+
+class RSpec::Github::Formatter
+end
+
+class RSpec::Github::NotificationDecorator
+  def annotation(); end
+
+  def initialize(notification); end
+
+  def line(); end
+
+  def path(); end
+  ESCAPE_MAP = ::T.let(nil, ::T.untyped)
+end
+
+class RSpec::Github::NotificationDecorator
+end
+
+module RSpec::Github
 end
 
 module RSpec::Its