[php-src] PR #25011: Fix GH-25009: GetConsoleTitleW() buffer size passed in bytes

Pull Request: https://github.com/php/php-src/pull/25011 Author: lazerg get_ps_title() passed sizeof(ps_buffer_w) to GetConsoleTitleW(), but nSize is a count of characters, not bytes. That told the API the 260-wchar_t buffer could hold 520 characters, so a console title of 260 or more characters set by another process overflowed the stack buffer. This passes MAX_PATH, the buffer's real length, so long titles get truncated instead. No test, since it needs a console title longer than PHP itself allows to set, which another process has to set on the same console. Fixes #25009