Deprecated nullable type causes a warning on PHP 8.4

Describe the bug

This is a mostly self-explaining problem whose fix is, fortunately, very simple - literally one extra letter.

Deprecated: Microsoft\Graph\Core\Requests\BaseBatchRequestBuilder::__construct(): Implicitly marking parameter $errorMappings as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/microsoft/microsoft-graph-core/src/Requests/BaseBatchRequestBuilder.php on line 49

Looking at the signature of the constructor

public function __construct(RequestAdapter $requestAdapter, array $errorMappings = null)

should be

public function __construct(RequestAdapter $requestAdapter, ?array $errorMappings = null)

Maybe the whole codebase should be scanned for this deprecation... these will become errors in PHP 9.

Expected behavior

No deprecation warning.

How to reproduce

Run anything with this class under PHP 8.4

SDK Version

2.25.0

Latest version known to work for scenario above?

No response

Known Workarounds

No response

Debug output

</details>


### Configuration

_No response_

### Other information

_No response_

Beginne bei src/Requests/BaseBatchRequestBuilder.php ungefähr in Zeile 49 und prüfe die im Report gezeigte Konstruktorsignatur. Führe die Klasse unter PHP 8.4 aus, um die Deprecation-Warnung zu reproduzieren. Als erledigt gilt die Aufgabe, wenn der Konstruktor diese Warnung nicht mehr ausgibt; überprüfe andere nullable Parameter nur, wenn damit das umfassendere Anliegen der Codebasis des Issues behandelt wird.