Add PHP 8.5 support

[asgrim]

PR #9 attempted to add this, but PHP 8.5 support is needed in upstream action php/php-windows-builder#12 first, as the 8.5 build is not happening.

[thecaliskan]

Hi @asgrim, This issue could be closed.

https://github.com/asgrim/example-pie-extension/releases/tag/2.0.3