Gets v3 request example saving as well as response example saving

Adds rubocop to the gemset

adds guard to the gemset for testing

test-app/spec/swagger_helper.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 RSpec.configure do |config|
@@ -5,7 +7,7 @@ RSpec.configure do |config|
   # NOTE: If you're using the rswag-api to serve API descriptions, you'll need
   # to ensure that it's configured to serve Swagger from the same folder
   config.swagger_root = Rails.root.to_s + '/swagger'
-
+  config.swagger_dry_run = false
   # Define one or more Swagger documents and provide global metadata for each one
   # When you run the 'rswag:specs:to_swagger' rake task, the complete Swagger will
   # be generated at the provided relative path under swagger_root
@@ -21,54 +23,54 @@ RSpec.configure do |config|
       },
       paths: {},
       servers: [
-          {
-              url: "https://{defaultHost}",
-              variables: {
-                  defaultHost: {
-                      default: "www.example.com"
-                  }
-              }
+        {
+          url: 'https://{defaultHost}',
+          variables: {
+            defaultHost: {
+              default: 'www.example.com'
+            }
           }
+        }
       ],
- 
+
       components: {
         schemas: {
-            errors_object: {
-                type: 'object',
-                properties: {
-                    errors: { '$ref' => '#/components/schemas/errors_map' }
-                }
-            },
-            errors_map: {
-                type: 'object',
-                additionalProperties: {
-                    type: 'array',
-                    items: { type: 'string' }
-                }
-            },
-            blog: {
-                type: 'object',
-                properties: {
-                    id: { type: 'integer' },
-                    title: { type: 'string' },
-                    content: { type: 'string', nullable: true },
-                    thumbnail: { type: 'string'}
-                },
-                required: [ 'id', 'title', 'content', 'thumbnail' ]
+          errors_object: {
+            type: 'object',
+            properties: {
+              errors: { '$ref' => '#/components/schemas/errors_map' }
             }
+          },
+          errors_map: {
+            type: 'object',
+            additionalProperties: {
+              type: 'array',
+              items: { type: 'string' }
+            }
+          },
+          blog: {
+            type: 'object',
+            properties: {
+              id: { type: 'integer' },
+              title: { type: 'string' },
+              content: { type: 'string', nullable: true },
+              thumbnail: { type: 'string' }
+            },
+            required: %w[id title content thumbnail]
+          }
         },
         securitySchemes: {
-            basic_auth: {
-                type: :http,
-                scheme: :basic
-            },
-            api_key: {
-                type: :apiKey,
-                name: 'api_key',
-                in: :query
-            }
+          basic_auth: {
+            type: :http,
+            scheme: :basic
+          },
+          api_key: {
+            type: :apiKey,
+            name: 'api_key',
+            in: :query
+          }
         }
-      },
+      }
     }
   }
 end