Clean up/organize Jenkins maintenance docs

Description

There are currently a lot of docs on the wiki related to Jenkins. Some are no longer relevant. These should be archived. The remaining docs should be organized, cleaned up and made sure that they contain modern information, in case anything has changed.

Additionally, capture any other maintenance related tasks (for Jenkins) into a doc, if not done so already.

Steps to Reproduce

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Current Behavior

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Expected Behavior

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Reason for Variance

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Release Notes

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User Impact Summary

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Assignee

Unassigned

Reporter

Stuart Young