1.0.5: chore(ci): test against PHP 7.4

* Updated to test again PHP 7.4 and to use that for coverage reporting.
* Added PHP nightly builds as an allowable failure.
* Added a git ignore as well as a `phpunit` configuration.
* Updated the tests and CI configuration to better handle the juggling of PHP and `phpunit` versions.
* Updated the coveralls dependency to be the latest and greatest instead of the deprecated package.
* Tweaked the README, updated the LICENSE years and bumped this package's version.
* Dropped Patreon link in favor of using Github Sponsors.