Modified aggregator test methods throughout the Chill project to be now static methods. Also updated yield construction to array returns for more standardised code.
The methods getFormData() and getQueryBuilders() across multiple test classes have been updated to static methods. This refactoring is part of a broader effort to improve code structure and readability. A rector rule has been employed to assist in the systematic update of these existing methods.
This change is made to comply with the new Symfony standards and to avoid deprecation warnings for future versions. The update touches various functionalities, including retrieving EntityManagerInterface instance and various service classes within the test files.
