Bump rubocop version to 0.24.0.
Bump rubocop version to 0.24.0.

opscafe/core,opscafe/data,opscafe/core,rxrc/bsdznc,ourtownrentals/chef-php-modules,rxrc/bsdznc,makenew/chef-cookbook,ourtownrentals/chef-server-solo,makenew/chef-cookbook,ourtownrentals/chef-server-solo,ourtownrentals/chef-supermarket-solo,opscafe/data,ourtownrentals/chef-php-modules,makenew/chef-cookbook,ourtownrentals/chef-supermarket-solo