[lang php] incorrect return type in PHPDoc rot arrays of objects

Description

Generated code:

    /**
     * Gets sessions
     *
     * @return map[string,\Model\Session]
     */
    public function getSessions()
    {
        return $this->container['sessions'];
    }

But PHPDoc don't support map[string,\Model\Session] format. Need use \Model\Session[] instead.

https://docs.phpdoc.org/3.0/guide/guides/types.html

Swagger-codegen version

swagger-codegen-cli-3.0.22.jar

Swagger declaration file content or url

Command line used for generation

docker run --rm -v ${PWD}:/local -w /local openjdk java -jar swagger-codegen-cli.jar generate --input-spec /local/openapi.yaml --lang php --output /local/out/ -c /local/openapi-codegen-php.json

Steps to reproduce

Related issues/PRs

Suggest a fix/enhancement

Locate the PHP generator or template that emits @return annotations, then reproduce the report with the supplied Docker command and a matching OpenAPI input. Done means generated PHPDoc uses PHPDoc-compatible array-of-object syntax instead of map[string,Model\Session], with relevant generator tests updated or added if they exist.