Arm backend: Add ignores for missing imports in test/models/sta...

Some missing imports for third-party libraries used in
stable_diffusion had ignores added to them.

Signed-off-by: per.held@arm.com
Change-Id: Icd86edd39ae4541813bc84c07fdab90571da98c2

Author: perheld

backends/arm/test/models/stable_diffusion/test_SD3Transformer2DModel.py

@@ -7,7 +7,9 @@
 from typing import Tuple
 
 import torch
-from diffusers.models.transformers import SD3Transformer2DModel
+from diffusers.models.transformers import (  # type: ignore[import-not-found]
+    SD3Transformer2DModel,
+)
 
 from executorch.backends.arm.test import common
 from executorch.backends.arm.test.models.stable_diffusion.stable_diffusion_module_test_configs import (

backends/arm/test/models/stable_diffusion/test_vae_AutoencoderKL.py

@@ -7,8 +7,12 @@
 from typing import Tuple
 
 import torch
-from diffusers.models.autoencoders import AutoencoderKL
-from diffusers.utils.testing_utils import floats_tensor
+from diffusers.models.autoencoders import (  # type: ignore[import-not-found]
+    AutoencoderKL,
+)
+from diffusers.utils.testing_utils import (  # type: ignore[import-not-found]
+    floats_tensor,
+)
 
 from executorch.backends.arm.test import common
 from executorch.backends.arm.test.models.stable_diffusion.stable_diffusion_module_test_configs import (