Draft: [CI] Shortening of the split-renderer test
Reason why this change is needed
The current implementation of tests/split_rendering/test_split_rendering.py is resource-heavy and time-consuming. The objective of this task is to introduce a shorter, more restricted variant of the test that covers only a limited set of the test cases. Note, that the full test will stay unchanged.
Description of the change
Introduce a shorter, more restricted variant of the tests/split_rendering/test_split_rendering.py.
Affected operating points
Purely CI modification.
Clsoes #1508