Remove a hardcoded customservice entry in favor of a dynamic construct

General MR

Summary

Because of an issue reported in the package pipeline templates we had to hardcode a reference to a database host in our test values. This isn't acceptable, but at the time, the functionality needed to dynamically construct the hostname wasn't available to us. Now it is. So this MR fixes that dynamic construction and pulls out the hardcoded value.

Relevant logs/screenshots

See pipelines, if they're green, it's working

Linked Issue

NA

Upgrade Notices

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