v6.0.0-RC2: Fix ack of acknowledged messages (#67)

Co-authored-by: Eugene Kirdzei <e.ki@nuwber.com>

First release candidate of the version 6.0.0

Php8 refactoring (#66)

* php8 support
* Classes refactoring
* Remove deprecated classes.

Fix typo

Fix typo (#64)

handle, not handler

Small documentation fix

v5.6

Fix syntax (#62)

Laravel 8 Support fix

Adding timeoutAt function to Job class (#59)

timeoutAt has been removed in Laravel 8 from the Job class

Add Laravel 8 support

v5.4

update deps, fix declaration, migrate phpunit config (#58)

Documentation improvement

Documentation improvements. (#57)

Co-authored-by: Eugene Kirdzei <e.ki@nuwber.com>

Minor updates

Github Actions setup (#55)

* github actions setup

* remove travis config

* change badge

Prepare payload and Fix middleware payload

Fix middleware call and exception (#53)

* fix Throwable handling

* fix bad array structure on middleware call

* Add tests

* fix array payload on middleware and listener call

* Cover payload if it is assoc

* improve payload check in publisher and dispatcher

* fix middleware test for array payload

* fix payload preparation in publisher

Co-authored-by: Eugene Kirdzei <e.ki@nuwber.com>

Middleware

Create example classes (#52)

Co-authored-by: Eugene Kirdzei <e.ki@nuwber.com>