Revert "Restrict permissions on scheduler plugin directories"

We want to keep scheduler plugin directorie as readable and searchable
but not writable by everybody. This allows users to access scheduler binaries
if needed.

This reverts commit 221cc16.

Author: demartinofra

cookbooks/aws-parallelcluster-scheduler-plugin/recipes/install.rb

@@ -23,21 +23,21 @@
 directory node['cluster']['scheduler_plugin']['local_dir'] do
   owner node['cluster']['scheduler_plugin']['user']
   group node['cluster']['scheduler_plugin']['user']
-  mode '0700'
+  mode '0755'
   action :create
 end
 
 directory node['cluster']['scheduler_plugin']['handler_dir'] do
   owner node['cluster']['scheduler_plugin']['user']
   group node['cluster']['scheduler_plugin']['user']
-  mode '0700'
+  mode '0755'
   action :create
 end
 
 directory node['cluster']['scheduler_plugin']['shared_dir'] do
   owner node['cluster']['scheduler_plugin']['user']
   group node['cluster']['scheduler_plugin']['user']
-  mode '0700'
+  mode '0755'
   action :create
 end