Parameterize trial_component_name in Tracker.py Create Function

Issue #, if available: No Issue Created

Description of changes:

Updated the create function in the Tracker.py file. Previously, this function hardcoded the trial_component_name as "TrialComponent". This can cause issues for users calling this function that have IAM policies in place that require them give specific names to experiment-trial-component resources. I parameterized trial_component_name as a function parameter and gave it a default of "TrialComponent". This way, the change should not be breaking to anyone.

The unit test test_log_pr_curve in test_tracker.py was failing on Python 3.8 but not other versions of Python. This was because sklearn automatically upgraded to 1.1.1 in python 3.8. I fixed this by forcing all unit tests to use sklearn==0.24.2 because that's the latest version that supports python 36, 37, and 38. I updated tox.ini to do this.

Testing done:

I added an additional assertion on test_create in test_tracker.py to validate the new trial_component_name parameter on Tracker.create.

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aws / sagemaker-experiments