docs(recipes): Add Prisma V7 Warning And Route And Revert Guide To V6

[RareParsec]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/docs.nestjs.com/blob/master/CONTRIBUTING.md

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Docs
• Other... Please describe:

What is the current behavior?

Issue Number: #3350

NestJS's guide on Prisma was recently updated for Prisma v7 in #3349. However, since Prisma v7 ships as an ES module, it conflicts with NodeJS's CommonJS system. Following the updated v7 guide produces errors. More details about this and the errors encountered following the guide are present on the issue (#3350).

What is the new behavior?

This PR reverts the Prisma guide at https://docs.nestjs.com/recipes/prisma back to Prisma v6.

It creates a new dedicated page for the Prisma v7 at https://docs.nestjs.com/recipes/prisma-v7.

On both pages, an info/warning notice is given at the top encouraging users to use Prisma v6 until a proper solution for this ESM+CJS mismatch is implemented in the v7 guide for NestJS users.

Does this PR introduce a breaking change?

• Yes
• No

Other information

I opted for not including a direct link to the v7 guide in the sidebar since the v7 page is meant to be temporary and as sort of a resource for those willing to mess around with it.

Thanks to @micalevisk for the discussion on #3350.