Refactor constructors to use nullable array type hinting

[tirgrig]

• Updated constructors in multiple model classes to accept a nullable array parameter.
• Changed the type hint from array $data = null to ?array $data = null for better clarity and to allow null values explicitly.

[sonarqubecloud]

Quality Gate failed

Failed conditions
79.7% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud

[franck-grenier]

Hello getbrevo people,
it would be very nice to have these changes, even in a new 1.0.3 release, since those deprecation warnings can be very annoying.

Hope you will be able to merge it rapidly.

[bhenscamp]

Hi,
What I see is, that brevo php lib must be compatible with php 5.6, so what is propose to add nullable (?) type is not possible unless php 7.1.
But maybe @tirgrig you can replace default null by an empty array, I think it could be worked.
public function __construct(array $data = [])

Hope I helped

[rommelfreddy]

@bhenscamp this is not possible due there are not only issues with array-property declarations.

@getbrevo: this issue will lead into problems with PHP 8.4 and projects were deprecates are treated as exceptions. so the package is not compatible with PHP 8.4.
PHP 5.x and PHP 7.x has been marked as EOL a long time ago, so the best practise would be to drop the support for those PHP Versions.

@jonirajput @sowmyahora2001