Build failed in strict mode

[kostyazgara]

I'm submitting a...

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

When creating PinoLogger instance and pass them to the FastifyAdapter in strict mode it throws the error

error TS2322: Type 'PinoLogger' is not assignable to type 'boolean | FastifyLoggerInstance | FastifyLoggerOptions<any, IncomingMessage | Http2ServerRequest, ServerResponse | Http2ServerResponse> | undefined'.
  Type 'PinoLogger' is not assignable to type 'FastifyLoggerInstance'.
    Types of property 'warn' are incompatible.
      Type '(msgOrObject: unknown, context?: string | undefined) => void' is not assignable to type 'FastifyLogFn'.
        Types of parameters 'context' and 'args' are incompatible.
          Type 'unknown' is not assignable to type 'string | undefined'.
            Type 'unknown' is not assignable to type 'string'.

72       logger: pinoLogger,

Expected behavior

Do not fail when I'm trying to pass pino logger to fastify adapter

Minimal reproduction of the problem with instructions

const logger = new Logger();
const pinoLogger = new PinoLogger();
logger.injectLogger(pinoLogger);
logger.setContext(coreContext);
const app = await NestFactory.create<NestFastifyApplication>(
  AppModule,
  new FastifyAdapter({
    logger: pinoLogger,
    genReqId: () => v4(),
  }),
  {
    logger,
  },
);

What is the motivation / use case for changing the behavior?

Environment

Nest version: 7.6.11

 
For Tooling issues:
- Node version: 14.15.0
- Platform:  Mac

Others: