feat: add NonExistentQueue to isConnectionError

[nicholasgriffintn]

Resolves #273

Description:

Adds the NonExistentQueue error code to the isConnectionError so that polling will be timed out if it occurs, like other connection errors

Type of change:

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Why is this change required?: A simple explanation of what the problem is and how this PR solves it

Code changes:

• Extended the isConnectionError function to check if the error code is AWS.SimpleQueueService.NonExistentQueue

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Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[github-actions[bot]]

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