Explicitly declare nullable types to fix deprecation in PHP 8.4

[xPaw]

PHP 8.4 deprecates implicitly nullable types.

You get a deprecation warning like so:

Cloudflare\API\Endpoints\Zones::cachePurge(): Implicitly marking parameter $hosts as nullable is deprecated, the explicit nullable type must be used instead in src/Endpoints/Zones.php:246

Nullable types are available since 7.1.0. There is CI action for PHP 7.0, but the composer requires has "php": ">=7.2.5"

[xPaw]

@jacobbednarz can you take a look? an easy fix

[SindlaXYZ]

Can someone review this pull request? My Sentry is filling up with errors because of these nullable types.

[xPaw]

For now you can require this pull request with a commit hash:
composer require cloudflare/sdk:dev-master#541fb4e2c9942a3b660bb6a0db676f7c851c144c

[rixafy]

@jacobbednarz would you please merge this and tag new version?
The library is not compatible with PHP 8.4 as of this moment, it's been 4 months since PHP 8.4 was released.

[simPod]

Is anyone using any alternative library? This one seems abandoned.