fix(build): Add ansible timeout for failing yum installs

Change the default timeout from 10 secs to 60 secs to accomodate the delay for slurm pkg yum install tasks after running ldap_config  role
Refer #125

openstack-proxy/nodeimage.pkr.hcl

@@ -52,7 +52,7 @@ build {
     use_proxy        = false
     user             = var.ssh_username
     groups           = ["proxy"]
-    ansible_env_vars = ["ANSIBLE_HOST_KEY_CHECKING=False"]
+    ansible_env_vars = ["ANSIBLE_TIMEOUT=60", "ANSIBLE_HOST_KEY_CHECKING=False"]
     playbook_file    = "./CRI_XCBC/proxy.yaml"
   }
 }