This PR disables cycles only render tests for the gpu/viewport based render engines. These render engines include EEVEE, Workbench, but also the Hydra viewport engines. Disabling those test would reduce test time. Tests that are being disabled are features that are only supported by Cycles. - Light groups - Light linking - Shadow catcher - Denoising - Path guiding - Reports Pull Request: https://projects.blender.org/blender/blender/pulls/117540