(PUP-11939) Don't manage firewall in smoke test

[joshcooper]

The latest release of puppetlabs-puppetdb depends on a version of firewall that doesn't support puppet8.

I intentionally didn't target 7.x, because it's only an issue with puppet8 and the puppetdb/firewall modules.

There are two 2 smoke tests described in https://github.com/puppetlabs/puppet-agent/tree/main/ext/smoke#overview

• [x] install from packages ./packages/run-smoke-test.sh suave-easement.delivery.puppetlabs.net retentive-creed.delivery.puppetlabs.net 8.2.0 8.2.1 8.1.0
• [x] install from shared repository ./repos/run-smoke-test.sh coy-pageantry.delivery.puppetlabs.net tart-breeze.delivery.puppetlabs.net astral-roomful.delivery.puppetlabs.net faulty-repeater.delivery.puppetlabs.net 8.2.0 8.2.1 8.1.0