[REQ] add `@ts-nocheck` option for typescript generator

Is your feature request related to a problem? Please describe.

We are using openapi-generator for generating typescript api client.
And we have a strict rule setting in tsconfig for rest of the project.

As mentioned in https://github.com/OpenAPITools/openapi-generator/issues/8961#issuecomment-962473353, https://github.com/OpenAPITools/openapi-generator/issues/1880#issuecomment-891689205 we are also facing to the situation where type-check will fail.

And we need to add // @ts-nocheck to every file which is generated.

Describe the solution you'd like

It would be much better to have an option to generate with // @ts-nocheck in all files.

Describe alternatives you've considered

Nothing else.

Additional context

Since it is auto-generated, it is sometimes redundant to keep these files clean and obey the strict rules.
So it would be nice to have a choice for developers how generated files are treated.

Anyway thanks for maintaining this wonderful tools and this is saving our project to go faster.

Start by locating the TypeScript generator's option handling and the code paths that assemble generated files. Check how an option can apply the // @ts-nocheck header to every generated file, then verify that generated TypeScript clients include it without changing other generator behavior.