FIX: OpenAPI Spec Generation on macOS

[Olshansk]

Context: OpenAPI Spec Generation not working as expected

The following command works on linux but not macOS

ignite generate openapi --yes

Details & Steps to Reproduce

1. Reference repo: https://github.com/pokt-network/poktroll

2. Reference ticket: [API] OpenAPI Spec Fixes pokt-network/poktroll#988

3. Workaround: [OpenAPI] Add Dockerfile to reliability generate the OpenAPI spec using ignite pokt-network/poktroll#1055

4. Expected output: https://github.com/pokt-network/poktroll/blob/main/docs/static/openapi.yml

5. Actual output:

   Empty OpenAPI spec output on macOS

   {
     "id": "github.com/pokt-network/poktroll",
     "consumes": ["application/json"],
     "produces": ["application/json"],
     "swagger": "2.0",
     "info":
       {
         "description": "Chain github.com/pokt-network/poktroll REST API",
         "title": "HTTP API Console",
         "contact": { "name": "github.com/pokt-network/poktroll" },
         "version": "version not set",
       },
     "paths": {},
     "definitions":
       {
         "google.protobuf.Any":
           {
             "type": "object",
             "properties": { "@type": { "type": "string" } },
             "additionalProperties": {},
           },
         "google.rpc.Status":
           {
             "type": "object",
             "properties":
               {
                 "code": { "type": "integer", "format": "int32" },
                 "details":
                   {
                     "type": "array",
                     "items":
                       {
                         "type": "object",
                         "$ref": "#/definitions/google.protobuf.Any",
                       },
                   },
                 "message": { "type": "string" },
               },
           },
       },
   }

[Pantani]

@Olshansk, can you try only building before running? I found this bug sometimes; the build process does not create the openai file if you serve your chain directly. I will take a look