fix: openapi/swagger options path

[gmatheus]

Hello! I've started using this plugin and noticed some unexpected behavior while trying to use openapi config on fastify.register. I've tried to include openapi.paths config following your options documentation (OpenAPI configuration) in order to include some additional paths to my Swagger object, but it had no effect. This PR fixes it.

Here's an example of what I'm trying to do with openapi.paths:

await fastify.register(fastifySwagger, {
  prefix: '/docs',
  openapi: {
    info: {
      title: 'Fastify sample server',
      description: 'Fastify sample api',
      version: '0.1.0',
    },
    paths: {
      '/status': {
        get: {
          description: 'Status route, so we can check if server is alive',
          tags: [
            'Status',
          ],
          responses: {
            200: {
              description: 'Server is alive',
              content: {
                'application/json': {
                  schema: {
                    type: 'object',
                    properties: {
                      health: {
                        type: 'boolean',
                      },
                      date: {
                        type: 'string',
                      },
                    },
                    example: {
                      health: true,
                      date: '2018-02-19T15:36:46.758Z',
                    },
                  },
                },
              },
            },
          },
        },
      },
    },
  },
})

I've also fixed it in swagger part since Swagger configuration also accepts a paths object.

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[Uzlopak]

LGTM

[gmatheus]

LGTM

@Uzlopak thanks for your review and thanks to @mcollina for re-running the checks!

Do you consider merging this one and releasing a new package version soon? This fix will be really useful in a project my team is working on.

[Uzlopak]

@fastify/leads
Can you please release?

[gmatheus]

Guys, any updates on the next release with this fix?

[Eomm]

done

thanks for the ping 👍🏼