Update collectd.yml

Check timeout to checks.
diff --git a/glusterfs/meta/collectd.yml b/glusterfs/meta/collectd.yml
index 87701be..69a1117 100644
--- a/glusterfs/meta/collectd.yml
+++ b/glusterfs/meta/collectd.yml
@@ -4,6 +4,9 @@
 local_plugin:
   collectd_glusterfs:
     plugin: python
+    {%- if server.check_timeout is defined %}
+    timeout: {{ server.check_timeout }} 
+    {%- endif %}
     template: glusterfs/files/collectd_glusterfs.conf
 {%- endif %}
 {%- endif %}