Shard out disabling running during firstboot (provisioning) 2% -> 5%

Summary:
bumpsign

This diff was created using http://fburl.com/chefshardbump

Differential Revision: D59290158

fbshipit-source-id: cd718ff4bd76fca1de79cf072477cce66df7237a

cookbooks/fb_timers/recipes/default.rb

@@ -59,5 +59,5 @@
 end
 
 fb_timers_setup 'fb_timers system setup' do
-  not_if { (node.firstboot_os? || node.firstboot_tier?) && node.in_shard?(1) }
+  not_if { (node.firstboot_os? || node.firstboot_tier?) && node.in_shard?(4) }
 end