Merge pull request #69 from Recras/main

PHP 8.4 compatibility

remove phpcs from 1.x workflow

add void return type declarations

throw exception when rates file contains content that could not be un…

…serialized

Update README.md

Merge pull request #45 from franmomu/deprecations_php81

Avoid deprecations using php 8.1

Merge pull request #34 from mixisLv/patch-1

Update Countries.php

fix test for first second of 2021

stop using JsonVatClient in tests

merge #25