Method Limenius\Liform\Serializer\Normalizer\FormErrorNormalizer::getSupportedTypes() should return array<string, bool|null> but returns array<int, string>.

Method Limenius\Liform\Serializer\Normalizer\InitialValuesNormalizer::getSupportedTypes() should return array<string, bool|null> but returns array<int, string>.

Process completed with exit code 1.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/cache@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/