resources/META-INF/phpstan-remote-plugin.xml

<idea-plugin>
  <extensions defaultExtensionNs="com.jetbrains.php">
    <tools.quality.PhpStan.PhpStanConfigurationProvider
      implementation="com.jetbrains.php.tools.quality.phpstan.remote.PhpStanRemoteConfigurationProvider"/>
  </extensions>
</idea-plugin>