[CI] Fail subprocess tests with root-cause error (#23795)

Signed-off-by: Nick Hill <nhill@redhat.com>

requirements/test.in

@@ -21,6 +21,7 @@ ray[cgraph,default]>=2.48.0 # Ray Compiled Graph, required by pipeline paralleli
 sentence-transformers # required for embedding tests
 soundfile # required for audio tests
 jiwer # required for audio tests
+tblib # for pickling test exceptions
 timm >=1.0.17 # required for internvl and gemma3n-mm test
 torch==2.8.0
 torchaudio==2.8.0

requirements/test.txt

@@ -137,7 +137,7 @@ contourpy==1.3.0
     # via matplotlib
 cramjam==2.9.0
     # via fastparquet
-cupy-cuda12x==13.3.0
+cupy-cuda12x==13.6.0
     # via ray
 cycler==0.12.1
     # via matplotlib
@@ -1032,6 +1032,8 @@ tabledata==1.3.3
     # via pytablewriter
 tabulate==0.9.0
     # via sacrebleu
+tblib==3.1.0
+    # via -r requirements/test.in
 tcolorpy==0.1.6
     # via pytablewriter
 tenacity==9.0.0