Describe the bug
Yaml spec (perhaps surprisingly?) allows you to use aliases in keys, the goccy/yaml parser doesn't seem to allow this

{a: &a cat, *a : b}

To Reproduce

https://go.dev/play/p/DhvHpcYjIag

Expected behavior
Tokeniser picks up AliasType as a Map key.

Screenshots
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Version Variables

• Go version: [e.g. 1.21 ]
• go-yaml's Version: [e.g. v1.11.1 ]

Additional context
Add any other context about the problem here.