* haproxy: T7906: Probing of a port other than the one to which normal traffic is sent
Add support for specifying a custom health check port for HAProxy backend servers.
This allows health probes to target a dedicated endpoint - such as port 8080 - separate
from normal traffic ports (e.g., 80 or 443).
* Fix article usage
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Co-authored-by: Daniil Baturin <daniil@baturin.org>