[FEATURE] Support steps to newsrec models

[loomlike]

Description

Currently newsrec models only support epoch training and the smoke-tests with epoch = 1 take minutes for each notebook.
With a simple tweak to base_model.fit(), we can introduce steps parameters that constraint the number of batches to train.
Then, we can set steps = 1 to the smoke test which will expediate the test time.

Expected behavior with the suggested feature

Use steps = 1 to all the smoke tests of the newsrec models.

[sumana-2705]

@loomlike @miguelgfierro
Shall I work on this issue?

[miguelgfierro]

feel free

[sumana-2705]

@miguelgfierro I have opened a pr, but most of the checks have failed. I am not able to understand what is the reason for it. Can you please explain me why it happens, so that I can correct those checks.

[miguelgfierro]

right now, we have a bug that prevents external contributors from running the tests. It is a security limit from MS. We need to find a workaround. See #1853

[sumana-2705]

okayy, I understood. Thanks for your reply @miguelgfierro