Disable load balancing when running rake tasks

What does this MR do?

rails can now run rake tasks, so can't rely on the executable name anymore

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

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Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
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Security

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Related to #322537 (closed)