Try to fix failture of tests on systems without a GPU

Signed-off-by: Jan André Reuter <jan.andre.reuter@hotmail.de>
4 jobs for gpu-optimization in 4 minutes and 50 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #103653
gpu docker
lint:python3

00:00:45

passed #103654
gpu docker
test:python3

00:02:19

 
  Install
passed #103655
gpu docker
install:python3

00:00:55

 
  Pack
passed #103656
gpu docker
pack:python3

00:00:50