[PHP] oneOf miss mapping types

Description

This problem appeared also in javascript.

Generation sdk for file creates invalid EmailResponse model.

oneOf:
        - $ref: '#/components/schemas/CheckIfEmailExistResult'
        - $ref: '#/components/schemas/MailboxvalidatorResult'
        - $ref: '#/components/schemas/PromptEmailVerificationApiResult'

Types and formats were not generated in EmailResponse.

/**
  * Array of property to type mappings. Used for (de)serialization
  *
  * @var string[]
  */
protected static $swaggerTypes = [
        ];

/**
  * Array of property to format mappings. Used for (de)serialization
  *
  * @var string[]
  */
protected static $swaggerFormats = [
        ];

Swagger-codegen version

3.0.24

Swagger declaration file content or url

https://github.com/go-email-validator/email-validator-sdk/blob/e99fe82d3c9d6d520687cf499688112e86acfe03/ev.openapiv3.yaml#L227

Command line used for generation

  docker run --rm -v ${PWD}/php:/local/out -v $(OPENAPI_PATH):/local/openapi.yaml swaggerapi/swagger-codegen-cli-v3:latest generate \
    -i /local/openapi.yaml \
    -l php \
    -o /local/out/

Start with the referenced ev.openapiv3.yaml oneOf declaration at line 227 and the generated php/SwaggerClient-php/lib/Model/EmailResponse.php output. Reproduce generation with the documented Docker command and inspect how the PHP generator handles this schema; done means EmailResponse contains the expected type and format mappings for the oneOf entries.