Track doc/code generator V3.0.0 support

[Amzani]

This issue is for tracking purposes only.

• AsyncAPI spec v3 support in .NET Nats template dotnet-nats-template#384
• AsyncAPI spec v3 support in TypeScript Nats template ts-nats-template#545
• AsyncAPI spec v3 support in Python paho template python-paho-template#189
• AsyncAPI spec v3 support in Node.js ws template nodejs-ws-template#294
• AsyncAPI spec v3 support in Java spring cloud stream template java-spring-cloud-stream-template#336
• AsyncAPI spec v3 support in Go watermill template go-watermill-template#243
• AsyncAPI spec v3 support in Java Spring template java-spring-template#308
• AsyncAPI spec v3 support in Node.js template nodejs-template#215
• AsyncAPI spec v3 support in Java Template java-template#118
• AsyncAPI spec v3 support in PHP Template php-template#191

Related to #979

[shapeit-bot]

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A few notes:
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[riyanrathore26]

Hi @Amzani I want to work on these issue asyncapi/nodejs-ws-template#294
but i don't know how to get start
can you give me some instructions to understand and contribute in this issue

[dalelane]

from 0.3.0 java-template now supports v3 AsyncAPI docs

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity 😴

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