chore(nomad): docker drive with more pull_activity_timeout for twitch miner deployment

ansible/roles/nomad/templates/nomad.hcl.j2

@@ -21,6 +21,7 @@ plugin "docker" {
     # extra Docker labels to be set by Nomad on each Docker container with the appropriate value
     extra_labels = ["job_name", "task_group_name", "task_name", "namespace", "node_name"]
     allow_privileged = true
+    pull_activity_timeout = "5m"
     volumes {
       enabled      = true
       selinuxlabel = "z"