Update imports in examples/notebooks

[helena-intel]

Update examples/notebooks to use from optimum.intel import ... instead of from optimum.intel.openvino import .... This is best practice, and it prevents difficult to debug errors. For example, if accelerate is not installed and you import OVTrainer, you get a friendly error with the new import but not with the old version.

Also

• added accelerate to example requirements
• updated Ubuntu/Python versions in the workflow files.
• fixed running example tests on changing example files

@AlexKoff88 unrelated to this PR, the audio classification example fails with this error:

FAILED examples/openvino/test_examples.py::TestExamples::test_audio_classification - nncf.errors.ValidationError: No match has been found among the model operations for the following ignored/target scope definitions:
 - ignored_scope: ['{re}.*__truediv__.*', '{re}.*matmul_1']
Refer to the original_graph.dot to discover the operations in the model currently visible to NNCF and specify the ignored/target scopes in terms of the names there.

[HuggingFaceDocBuilderDev]

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[echarlaix]

Looks good, thanks @helena-intel !!

[echarlaix]

Can you take a look at the failing test_audio_classification examples before we can merge @helena-intel ?

[helena-intel]

Can you take a look at the failing test_audio_classification examples before we can merge @helena-intel ?

It looks like the issue is caused by the nncf_compression_config not being used. In https://github.com/huggingface/optimum-intel/blob/main/optimum/intel/openvino/configuration.py#L313 compression is set to None. I changed it to kwargs.get("compression", None).

[echarlaix]

thanks a lot for the fix @helena-intel