ci: add iptables package to SLES 16 RKE2 provisioning scripts

Add missing iptables package installation for both RKE2 server and
agent nodes on SLES 16-0.

longhorn/longhorn#12303

Signed-off-by: Roger Yao <roger.yao@suse.com>

Author: roger-ryao

test_framework/terraform/aws/sles/user-data-scripts/provision_rke2_agent.sh.tpl

@@ -5,7 +5,7 @@ set -e
 sudo systemctl restart guestregister # Sometimes registration fails on first boot.
 sudo zypper ref
 sudo zypper install -y -t pattern devel_basis
-sudo zypper install -y open-iscsi nfs-client cryptsetup device-mapper samba
+sudo zypper install -y open-iscsi nfs-client cryptsetup device-mapper samba iptables
 
 sudo mkdir -p /etc/certs
 sudo ln -s /var/lib/ca-certificates/ca-bundle.pem /etc/certs/ca-certificates.crt

test_framework/terraform/aws/sles/user-data-scripts/provision_rke2_server.sh.tpl

@@ -5,7 +5,7 @@ set -e
 sudo systemctl restart guestregister # Sometimes registration fails on first boot.
 sudo zypper ref
 sudo zypper install -y -t pattern devel_basis 
-sudo zypper install -y open-iscsi nfs-client jq azure-cli
+sudo zypper install -y open-iscsi nfs-client jq azure-cli iptables
 
 sudo mkdir -p /etc/certs
 sudo ln -s /var/lib/ca-certificates/ca-bundle.pem /etc/certs/ca-certificates.crt