Fix SqsEventSource.status error handling in utilities.py

[lmuther8]

Description

Expected Behavior
The zappa update {{stage}} command should fail and alert the user their permissions are not enough.

Actual Behavior
The program thinks the event source does not exist, tries to create one with the same UUID and then this error is caused:

botocore.errorfactory.ResourceConflictException: An error occurred (ResourceConflictException) when calling the
 CreateEventSourceMapping operation: An event source mapping with SQS arn (" arn:aws:sqs:us-west-2:<account>:
<sqs_name> ") and function (" <function_name> ") already exists. Please update or delete the existing mapping 
with UUID <uuid>

GitHub Issues

Closes #1317

[monkut]

Can you add a testcase to reproduce the issue?

[monkut]

This raise changes the current operation of the status() function. I'm not sure if it's desired to raise an exception here.

Also, there is no e defined, this is expected raise a NameError exception as-is.

[github-actions]

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