Fix generated config when binding to IPv6 addresses

[b4ldr]

When using an ipv6 address in the host we need to wrap the addresses with square brackets.

[Copilot]

Pull Request Overview

This PR adds support for IPv6 addresses in the HTTP port configuration by wrapping IPv6 addresses in square brackets, following the standard format for IPv6 addresses in URLs and host:port combinations.

• Refactored the host:port string construction logic to use a conditional expression instead of if-else blocks
• Added IPv6 address detection using Stdlib::IP::Address::V6 type checking
• IPv6 addresses are now properly wrapped in square brackets when combined with port numbers

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
manifests/http_port.pp	Implements IPv6 address detection and wrapping logic using conditional expression
spec/defines/http_port_spec.rb	Adds test case to verify IPv6 addresses are properly wrapped in square brackets

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