This issue is to implement the command necessary to view a repository autolinks as discussed within #9420 underneath gh repo autolink.

This should follow similar form as existing GitHub CLI commands as well as necessary tests.

Acceptance Criteria

When I run gh repo autolink view --help
Then I see an informative help usage containing descriptive command information:

1. Long description explaining command purpose.

2. Usage: gh repo autolink view <id> [flags]

3. Flags:

     -q, --jq expression     Filter JSON output using a jq expression
         --json fields       Output JSON with the specified fields
     -t, --template string   Format JSON output using a Go template; see "gh help formatting"

1. Inherited flags:

INHERITED FLAGS
         --help                     Show help for command
     -R, --repo [HOST/]OWNER/REPO   Select another repository using the [HOST/]OWNER/REPO format

1. JSON fields:

 JSON FIELDS
     id, isAlphanumeric, keyPrefix, urlTemplate

The web UI does not provide a route representing a single autolink, so we don't provide a --web flag here.

Given I don't have the admin role on the repository
And Given I have a local repository cloned from GitHub
When I run gh repo autolink view <id>
Then I see an informative error

error getting autolink: HTTP 404: Either no autolink with this ID exists for this repository or you are missing admin rights to the repository. (https://api.github.com/repos/{owner}/{repo}/autolinks)

The REST API provides identical 404 responses for (1) repo doesn't exist, (2) repo exists but autolink doesn't, and (3) both exists but user lacks admin rights.

When I run gh repo autolink view without an argument
Then I see an informative error

accepts 1 arg(s), received 0

Given I have the admin role on the repository
And Given I have a local repository cloned from GitHub
When I run gh repo autolink view <id> where <id> is the ID of an autolink in the repository.
Then I see a message of the following form:

Autolink in <owner>/<repo>

ID: <id>
Key Prefix: <keyPrefix>
URL Template: <urlTemplate>
Alphanumeric: <isAlphanumeric>

Given I have a repository with an autolink
When I run gh repo autolink view --json
Then I see a list of repository autolink fields that can be outputted in JSON format:

Specify one or more comma-separated fields for `--json`:
  id
  isAlphanumeric
  keyPrefix
  urlTemplate

Given I have a repository with an autolink
When I run gh repo autolink view <id> --json <field>[,<field>...] with one or more relevant fields
Then I see a JSON representation of the autolink only containing the specified fields:

{
  "id": 1,
  "isAlphanumeric": false,
  "keyPrefix": "DISCORD-",
  "urlTemplate": "https://discord.com/channels/<num>"
}

Given I have a repository with an autolink
When I run gh repo autolink view <id> --json <field>[,<field>...] --jq '...' with a valid jq filter
Then I see the JSON result from applying the jq filter to the standard gh repo autolink --json <field>[,<field>...] result:

gh repo autolink list --json keyPrefix --jq '.keyPrefix'

resulting in:

TICKET-

Given I have a repository with an autolink
When I run gh repo autolink view <id> --json <field>[,<field>...] --template '...' with a Go template
Then I see the formatted JSON result from applying the template Go template filter to the standard gh repo autolink view <id> --json <field>[,<field>...] result