[GIT-PULLS] [php-src] PR #22724: CI: fix unstable test \ext\sockets\tests\socket_recvfrom_afpacket_no_port.phpt

Pull Request: https://github.com/php/php-src/pull/22724
Author: LamentXU123

Fix flaky CI: https://github.com/php/php-src/actions/runs/29266463698/job/86873055452

When investigating, I've noticed that similar tests does not have this issue. Only `socket_recvfrom_afpacket_no_port.phpt` is flaky. Which makes me discover a shared logic in tests:

https://github.com/php/php-src/blob/master/ext/sockets/tests/socket_sendto_recvfrom_afpacket_malformed.phpt#L28-L41
```php
<?php
function recv_matching(Socket $s, string $header, int $maxlen = 65536, ?string &$addr = null, &$port = null): string|false {
    socket_set_nonblock($s);
    $deadline = microtime(true) + 5.0;
    while (microtime(true) < $deadline) {
        $bytes = @socket_recvfrom($s, $buf, $maxlen, 0, $addr, $port);
        if ($bytes !== false && is_string($buf) && str_starts_with($buf, $header)) {
            return $buf;
        }
        if ($bytes === false) {
            usleep(1000);
        }
    }
    return false;
}
```
This allows the test to wait for a frame matching its own Ethernet header before asserting the returned address, so it no longer depends on incidental packet ordering. ETH_P_ALL sockets on loopback can observe unrelated localhost traffic.

And this single flack test donesn't have that logic. Let's add them.