Remove chef from oc-chef-pedent Gemfile so that it is not pulled in as dependency, add activesupport as direct dependency which used to pulled in via chef since it is widely using concern implementation (#4122)

Signed-off-by: neha-p6 <[email protected]>

Author: neha-p6

oc-chef-pedant/Gemfile

@@ -6,15 +6,11 @@ gem "pry"
 gem "pry-byebug"
 gem "pry-stack_explorer"
 gem "rake"
-gem "rest-client", git: "https://github.com/chef/rest-client", branch: "jfm/ucrt_update1"
-
-# We require chef internally to get the version in
-# lib/pedant/request.rb. It's really strange code and it should be
-# revisited.
-gem "chef", "18.8.46"
+gem "rest-client", git: "https://github.com/chef/rest-client.git", branch: "jfm/ucrt_update1"
 
 # For "rake chef_zero_spec"
-# gem 'chef-zero', github: 'chef/chef-zero'
+# PR #352 merged to main but not released yet - use main branch
+gem 'chef-zero', git: "https://github.com/chef/chef-zero.git", branch: "main"
 
 # If you want to load debugging tools into the bundle exec sandbox,
 # # add these additional dependencies into Gemfile.local