Agent Autoconfig callback is not IPv6 ready

[andrewazores]

cryostat-operator/internal/webhooks/agent/pod_defaulter.go

Line 465 in 088ffea

Value: fmt.Sprintf("$(%s), $(%s)[replace(\".\"\\, \"-\")]", podNameEnvVar, podIPEnvVar),

The callback hostname fallback for the Pod IP assumes an IPv4 address. It should check if the Pod IP is IPv4 or IPv6 address and handle these accordingly. The transformation for IPv6 addresses to hostnames should probably just be to enclose the address in square brackets ([1:2:3:4]).