Skip nvfp4 test on unsupported arch

Signed-off-by: Jeremy Berchtold <[email protected]>

Author: jberchtold-nvidia

tests/jax/test_custom_call_compute.py

@@ -2055,6 +2055,7 @@ def _make_args_based_on_input_tensor_shape_and_dtype(self, stablehlo_text: str):
             ))
         return parsed_args
 
+    @pytest.mark.skipif(is_fp4_supported, reason=fp4_unsupported_reason)
     def test_ffi_compatibility(self, ffi_hlo_name):
         """ Tests that the current FFI bindings are compatible with the provided HLO and there are no API mismatches. """
         from jax.extend.backend import get_backend