get https://api.linode.com//networking/firewalls/rulesets
Returns a paginated list of RuleSets.
linode-cli firewalls ruleset-list
<https://techdocs.akamai.com/cloud-computing/docs/getting-started-with-the-linode-cli>
firewall:read_only
<https://techdocs.akamai.com/linode-api/reference/get-started#oauth>