Track extension progress with php 8.5

[henderkes]

We should create a 8.5 test branch that routinely tests all extensions with php 8.5. Some of them (like Swoole) won't see a compatible release before php 8.5 release, but others are already changing.

RC2 broke ast compilation. We'll be in for a bit of a whack-a-mole game with our php 8.5 support for a while.

[crazywhalecc]

I think it should be workflow issue. And add 8.5 in hosted repo scheduled tests. BTW I also will need to deal with red workflows here