feat: Install missing pkg required during deploy

NetworkManager is restarted during cloud-init final module but it fails
because the package was not available. So install it during build
process to make it available during deploy

openstack-ood/nodeimage.pkr.hcl

@@ -60,7 +60,7 @@ build {
 
   provisioner "shell" {
     inline = [
-      "sudo yum install -y libselinux-python3 python3 python3-pip tmux vim git bash-completion curl wget unzip",
+      "sudo yum install -y libselinux-python3 python3 python3-pip tmux vim git bash-completion curl wget unzip NetworkManager",
       "sudo python3 -m pip install --upgrade pip",
       "sudo pip3 install s3cmd==2.3.0 ansible==4.10.0 python-openstackclient==5.8.0"
     ]