[PHP-Symfony] Wrong type hint in model setter

Created by: LudoMon

Description

I use the php-symfony generator to generate some models. One of them has an array property, that contains objects

When I generate the model, the generated setter has the wrong typehint:

    /**
     * Sets myProp.
     *
     * @param \MyNamespace\MyObject[] $myProp
     *
     * @return $this
     */
    public function setMyProp(MyObject $myProp)
    {
        $this->myProp= $myProp;

        return $this;
    }

The method expects an array of objects, the generated PhpDoc is right but not the type hint

openapi-generator version

3.3.2-SNAPSHOT

OpenAPI declaration file content or url

    MyArray:
      type: object
      required:
      - myProp
      properties:
        myProp:
          type: array
          items:
            $ref: "#/components/schemas/MyObject"

Command line used for generation

java -jar /opt/openapi-generator-cli/openapi-generator-cli.jar generate
-DsrcBasePath=app/src
-DvariableNamingConvention=camelCase
-DphpLegacySupport=false
-Dmodels
-DmodelTests=false
-DmodelDocs=false
--invoker-package MyPackage
--model-package MyModelPackage
--model-name-suffix DTO
-i openapi.yaml
-g php-symfony
-o /var/project