Added PHP 8.5 Support

[danielmorell]

Description of the change

This PR adds support for PHP 8.5. There were some deprecations that needed to be handled. As well as some new expectations from Psalm i.e. the #[/Override] attribute.

Type of change

• New feature (non-breaking change that adds functionality)

Related issues

• SDK-564

Checklists

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• "Ready for review" label attached to the PR and reviewers assigned
• Issue from task tracker has a link to this pull request
• Changes have been reviewed by at least one other engineer