rubocop: Enable Style/AccessorGrouping and autofix offenses

- With RuboCop 1.48.1 this no longer reports offenses and applies bugged
  autocorrections for `attr`s with Sorbet `sig`s, so we can enable it.

Library/.rubocop.yml

@@ -301,10 +301,6 @@ Sorbet/StrictSigil:
   Include:
     - "**/*.rbi"
 
-# Conflicts with type signatures on `attr_*`s.
-Style/AccessorGrouping:
-  Enabled: false
-
 # Require &&/|| instead of and/or
 Style/AndOr:
   EnforcedStyle: always

Library/Homebrew/utils/pypi.rb

@@ -18,9 +18,7 @@ module PyPI
   class Package
     extend T::Sig
 
-    attr_accessor :name
-    attr_accessor :extras
-    attr_accessor :version
+    attr_accessor :name, :extras, :version
 
     sig { params(package_string: String, is_url: T::Boolean).void }
     def initialize(package_string, is_url: false)