fix: typings for fastify enableCors method

[mdorda]

Fastify adapter uses typings from @fastify/cors package for enableCors method

Fix #13234

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features) I do not think it is needed, documentation already refers to @fastfy/cors options

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
• CI related changes
• Other... Please describe:

What is the current behavior?

Issue Number: #13234

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No (well, it could be for fastify, because typings have been changed...)

Other information

I'm not sure I've got the architecture right. My understanding is that the adapter should be platform-independent, and if there is a platform-specific implementation of the adapter then not. I took inspiration from useStaticAssets method for example, i.e. a universal adapter has any types and then the individual types are applied to the adapter (fastify, express) implementations.

[coveralls]

Pull Request Test Coverage Report for Build 3ac7222e-1121-4ad3-b143-a064507b3715

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.16%

---

Totals
Change from base Build dfe9054c-bafd-4c33-b92a-568f17cde136:	0.0%
Covered Lines:	6736
Relevant Lines:	7309

---

💛 - Coveralls