[Feature]: Nestjs+Fastify support

[vinayagg]

Description

AdminJS already has NestJS support and Fastify support. It does not support NestJS with Fastify. This should be minimal work but will help accelerate frontend development. Please add this support.

Suggested Solution

Add support for NestJS with Fastify.

Alternatives

No response

Additional Context

No response

[makuko]

I created a package for this: @nestlike/adminjs-fastify. Feel free to use it. I tried to make it as similar as possible to the official nestjs package.

I will soon publish a new version compatible with AdminJS v7.