style: update rubocop to 0.37.2

Closes Homebrew/homebrew#49084.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Library/Homebrew/cmd/style.rb

@@ -8,7 +8,7 @@ module Homebrew
       ARGV.formulae.map(&:path)
     end
 
-    Homebrew.install_gem_setup_path! "rubocop", "0.36.0"
+    Homebrew.install_gem_setup_path! "rubocop", "0.37.2"
 
     args = [
       "--format", "simple", "--force-exclusion", "--config",