bump facebook sdk to v23

[cappuc]

Description

bump facebook sdk to v23. This also fix some deprecation warning with php 8.4 (fixed in newer facebook sdk)

How has this been tested?

• Unit tests
• Integration tests
• Manual testing

[Copilot]

Pull Request Overview

Bump facebook/php-business-sdk to v23 to resolve PHP 8.4 deprecation warnings and align internal event payload with the new SDK expectations.

• Update composer constraint to ^23.0 for facebook/php-business-sdk.
• Adjust setEvents call to pass a plain array instead of a collection.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/ConversionsApi.php	Pass events as an array to the Facebook SDK (likely required by v23).
composer.json	Bump facebook/php-business-sdk from ^19.0 to ^23.0.

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