0.4.2: release ready, `uv_queue_work` runs as expected

in reference to: https://github.com/amphp/ext-uv/issues/46

0.4.1

remove repeated code line, enable global var speedup

0.4.0: new version ready, `uv_queue_work` works on PHP 8+

- Linux tests pass as is, Windows after callback not executed and segfaults still.

In reference to issues: https://github.com/amphp/ext-uv/issues/83, https://github.com/amphp/ext-uv/issues/93, https://github.com/amphp/ext-uv/issues/64

Initial - reverted signatures, bug fixes, no `pecl` needed

In reference to: amphp#106, amphp#107, amphp#94, amphp#98, amphp#93, amphp#92, amphp#86, amphp#84, amphp#82, amphp#64

• BC signature changes has been revert since some of the tests wasn't changed to match, and too far off original design.
• Using current Libuv version or systems installed one, not pecl, this setup is not reliant on the really slow pecl system for updated installations.

The whole uv_queue_work() will need to be re implemented, the core internal TSRM.c thread related tsrm_***_interpreter_context functions used in PHP 7.4 has been removed since PHP 8.0.