Improve tests to temporarily downgrade to Xdebug 3.4.1 due to segfaults

Improve tests to temporarily downgrade to Xdebug 3.4.1 due to segfaults

Improve PHP 8.4+ support by avoiding implicitly nullable types

Improve PHP 8.4+ support by avoiding implicitly nullable types

Improve PHP 8.4+ support by avoiding implicitly nullable types

Update test suite and remove legacy PHPUnit workarounds

Update test suite and remove legacy PHPUnit workarounds

Update test suite and remove legacy PHPUnit workarounds

Drop deprecated alternative Connector constructor argument order

Drop deprecated Server class, use SocketServer instead

Drop deprecated Server class, use SocketServer instead

Fix cancelling happy eyeballs when IPv6 resolution is pending

Test on PHP 8.3 and update test environment

Use Promise v3 template types

Use Promise v3 template types

Update test suite to collect all garbage cycles

Update test suite to avoid unhandled promise rejections

Include timeout logic to avoid dependency on reactphp/promise-timer