AcceptanceTester and Acceptance do not comply with PSR-4.

[twistor]

When installing this package with composer install -o I get a notice that there are 2 classes that do not comply with PSR-4 and will not work with Composer 2.0.

Deprecation Notice: Class Psalm\MockeryPlugin\Tests\AcceptanceTester located in ./vendor/psalm/plugin-mockery/tests/_support/AcceptanceTester.php does not comply with psr-4 autoloading standard. It will not autoload anymore in Composer v2.0. in phar:///usr/local/bin/composer/src/Composer/Autoload/ClassMapGenerator.php:201
Deprecation Notice: Class Psalm\MockeryPlugin\Tests\Helper\Acceptance located in ./vendor/psalm/plugin-mockery/tests/_support/Helper/Acceptance.php does not comply with psr-4 autoloading standard. It will not autoload anymore in Composer v2.0. in phar:///usr/local/bin/composer/src/Composer/Autoload/ClassMapGenerator.php:201