Fix ping method & min PHP version change
Remove ping method redifining (#4) * remove ping method redifining * add more php versions to ci * use github actions * add redis to ci * update phpunit, remove old php versions * more ci fixes * add badges
Remove ping method redifining (#4) * remove ping method redifining * add more php versions to ci * use github actions * add redis to ci * update phpunit, remove old php versions * more ci fixes * add badges