Error with package antecedent/patchwork:1.4.0 in integration tests

[dnaber-de]

After updating the dependencies I get the following errors:

$ composer update --prefer-dist
Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing antecedent/patchwork (1.3.5)
  - Installing antecedent/patchwork (1.4.0)
    Loading from cache

$ phpunit -c phpunit-integration.xml

Warning: flock(): Illegal operation argument in /var/www/projects/inpsyde/wpml-to-mlp/wp-content/plugins/wpml2mlp/vendor/antecedent/patchwork/src/CodeManipulation/Stream.php on line 185

Warning: file_put_contents(): Exclusive locks are not supported for this stream in /var/www/projects/inpsyde/wpml-to-mlp/wp-content/plugins/wpml2mlp/vendor/inpsyde/wp-tests-starter/src/WpTestsStarter/WpTestsStarter.php on line 304

When setting the dependencies back to the previous state, the errors not longer appears.