Docs: Clarify service.port allowed value types

[aimeeu]

Description

• Add table to service.port parameter entry to clarify allowed port value types by service kind. See the Jira ticket for more context. Note that I added a row for using connect native since the example on the connect page shows a port label.
• Update a few outdated links to Consul native docs.

Links

Jira: CE-855

https://nomad-git-ce855-hashicorp.vercel.app/nomad/docs/job-specification/service#port

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[gulducat]

lgtm!

[gulducat]

ah yeah, in particular this one needing to be a number can be pretty confusing if you're accustomed to labels elsewhere.