## Summary
- Adds `HTTPClient.Configuration.DNSResolver` with `.system` (default)
and `.randomized`
cases. When `.randomized` is selected, `NIORandomizedDNSResolver` is
installed on the
underlying `ClientBootstrap`, shuffling addresses returned by
`getaddrinfo`.
- Motivation: enables DNS-based load balancing for services that publish
multiple A/AAAA
records (e.g. Kubernetes headless services). The system resolver returns
addresses in a
deterministic order (typically RFC 6724 destination-address selection),
which defeats
round-robin DNS — clients hammer the first address.
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Co-authored-by: Pavan sai kumar alladi <p_alladi@apple.com>
Co-authored-by: George Barnett <gbarnett@apple.com>
