feat: changes for symfony 6

[Chris53897]

@Alexandre-T
can you please have a look at this. With this changes my tests are green (only testet local with php 8.2)

[Chris53897]

Possible improvment for later. But lets focus on allow it to use it with symfony 6.

# If you need to access services in a test, create an alias
# and then fetch that alias from the container. As a convention,
# aliases are prefixed with test. For example:
#
# test.App\Service\MyService: '@App\Service\MyService'

[Alexandre-T]

All tests were good on my local platform. Thank you!