Add knife_version as constant in Pedant::Config, read that in request.rb

Signed-off-by: neha-p6 <neha.pansare@progress.com>

Author: neha-p6

oc-chef-pedant/lib/pedant/request.rb

@@ -36,8 +36,7 @@ def server_api_version
 
     # Grab the the version of Chef / Knife that's on the box in order
     # to properly set the X-Chef-Version header
-    KNIFE_VERSION = "18.8.46" # This version should be updated manually to point to valid chef release.
-    # FYI, this must be a valid, shipping version of Chef, or the server will reject requests.
+    KNIFE_VERSION = Pedant::Config.knife_version
 
     # Headers that are added to all requests
     def standard_headers

omnibus/files/server-ctl-cookbooks/infra-server/templates/default/pedant_config.rb.erb

@@ -204,3 +204,6 @@ role "<%= @role %>"
 
 include_version_in_status <%= node['private_chef']['opscode-erchef']['include_version_in_status'] %>
 include_x_ops_api_info <%= node['private_chef']['opscode-erchef']['include_x_ops_api_info'] %>
+
+# Chef/knife version number required in request.rb
+knife_version "18.8.46" # Bump this as needed