Data Export: Create Service - Add workflow execution

[ChrisHuynh333]

What does this PR do and why?

This PR adds exporting workflow execution to the export create service.

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How to set up and validate locally

1. Ensure tests pass locally

PR acceptance checklist

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[ChrisHuynh333]

Can you add validation to ensure that multiple workflow_execution ids are not passed. Also test case for this new validation.

Added in 18dbf55b8d500a38ff6e647438e449fb3a2f186b

[github-actions[bot]]

Simplecov Report

Covered	Threshold
91.89%	90%