Exception -> Throwable

[swilla]

In PHP 8+, some failures (like DNS resolution and SSL verification errors) can throw Error exceptions, which don't extend Exception, so they weren't being caught and sites weren't being flagged as down.

Example exceptions:

stream_socket_client(): SSL operation failed with code 1. OpenSSL Error messages:
error:0A000086:SSL routines::certificate verify failed

stream_socket_client(): php_network_getaddresses: getaddrinfo for www.domain.org failed: Try again