Align the namespace project test with project src

[SebastienDegodez]

Reason/Context

Align the namespaces of the test part with the source code to ensure consistency and maintainability.

Description

The namespaces in the test files should match the namespaces in the source files. This alignment will help in organizing the code better and make it easier to navigate between tests and their corresponding source code.

This is an error introduced at the beginning before switching the code to microcks rather than testcontainer.
No breaking change.

Implementation ideas

1. Identify all the test files in the project.
2. Compare the namespaces in the test files with the namespaces in the corresponding source files.
3. Update the namespaces in the test files to match the namespaces in the source files.
4. Verify that all tests still run successfully after the changes.