chore(e2e): Increase timeout when setting up container (#4661)

When setting up the docker container in this module, there's a an additional script that runs (00-trust-user-ca) that takes some time to execute. This can occasionally take longer than the current 20s timeout, so we are bumping it here

enos/modules/docker_openssh_server_ca_key/main.tf

@@ -105,7 +105,7 @@ resource "enos_local_exec" "wait" {
     docker_container.openssh_server
   ]
 
-  inline = ["timeout 20s bash -c 'until ssh -t -t -i ${var.private_key_file_path} -p 2222 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentitiesOnly=yes ${var.target_user}@localhost hostname; do sleep 2; done'"]
+  inline = ["timeout 30s bash -c 'until ssh -t -t -i ${var.private_key_file_path} -p 2222 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentitiesOnly=yes ${var.target_user}@localhost hostname; do sleep 2; done'"]
 }
 
 output "user" {