feat: add tags() function to the root AsyncAPI file

[KhudaDad414]

Why do we need this improvement?

AsyncAPI v2 and v3 support tags in the root of the AsyncAPI file. It would be helpful to have a function that parses those tags from the AsyncAPI document with parsers.

How will this change help?

this change would help tooling to not use the JSON of the asyncAPI document to access the document tags.

Screenshots

No response

How could it be implemented/designed?

we need to add a function to the root of the AsyncAPI file.

🚧 Breaking changes

No

👀 Have you checked for similar open issues?

• I checked and didn't find a similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue?

Yes I am willing to submit a PR!