v280.0.22

Updates:

• Updates nats-server from 2.10.12 to 2.10.14

What's Changed

• Linting and code cleanup by @aramprice in #2504
• Use NetAddr::CIDR.create instead of CIDRv{4,6}.new by @aramprice in #2507
• Remove PowerDNS by @aramprice in #2501
• Unpin riemann-client gem and upgrade by @aramprice in #2506
• Ensure Health Monitor HTTP connections are closed by @ystros in #2510

Full Changelog: v280.0.21...v280.0.22