Add support for Laravel 10 (#15)

* Add testebench 8 (Laravel 10) to test matrix

* Support for newer Testbench-versions

* Update phpunit.xml

Compat-check against Laravel 9 (#11)

* Compat-check against Laravel 9

* Delete .scrutinizer.yml

Test against PHP 8.1

Improved handling for empty values in Laravel (#9)

* Improve handling on Laravel-validations

* Add PHP 8.1 to test matrix

* Update run-tests.yml

Refactoring, removal of the Clean-method (#7)

* Refactoring, removal of the Clean-method

* Bump personnummer/personnummer

* Cleanup, add clean-trait as a helper

* Additional test

* Update readme

* Fix spelling

Housekeeping (#5)

* Add FUNDING.yml

* Cleanup, update for 2021

* Update run-tests.yml

Documentation fixes (#3)

* Fix for Laravel-messages

* Improved documentation

* Tweaks and fixes