fix: parameters examples value validation

[taiki-fw]

Summary

I would like to fix the problem that validation error occurs if the validation of value is an object when defining examples with parameters such as integer in schema as shown in the official example.

Test Plan

Add an integer instead of an object to examples in test/api.test.domain/index.yml

parameters:
        - in: query
          name: from.publishedAt
          schema:
            type: integer
            format: int32
          examples:
            example1:
              value: 20231119
            example2:
              value: 20240101

pnpm run test:code:gen succeeds!

[Himenon]

@taiki-fw

Thank you Contirbute, I have released it with v0.27.3!

https://github.com/Himenon/openapi-typescript-code-generator/releases/tag/%40himenon%2Fopenapi-typescript-code-generator%400.27.3