Identify Worker Accuracy.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/ground_truth_labeling_jobs/worker_labeling_efficiency/Identify Worker Accuracy.ipynb

Error:

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Exception encountered at "In [13]":
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NoSuchBucket Traceback (most recent call last)
in
----> 1 run_sanity_check(bucket)
2 write_worker_metrics(labeling_job_output_location, labeling_job_name, worker_metrics_output, golden_answers)

in run_sanity_check(bucket_name)
3 region = boto3.session.Session().region_name
4 s3 = boto3.client('s3')
----> 5 bucket_region = s3.get_bucket_location(Bucket=bucket_name)['LocationConstraint']
6 if bucket_region is None:
7 bucket_region = 'us-east-1'

/opt/conda/lib/python3.7/site-packages/botocore/client.py in _api_call(self, *args, **kwargs)

[...]

NoSuchBucket: An error occurred (NoSuchBucket) when calling the GetBucketLocation operation: The specified bucket does not exist

Open Identify Worker Accuracy.ipynb and start at In[13], where run_sanity_check(bucket) fails during GetBucketLocation. Check how the bucket value is supplied and reproduce the CI failure; done means the notebook no longer raises NoSuchBucket in CI.

Written by the indexing model from the issue text.