Allow `Strideable` for configurationValues

This may be better off as Comparable?

Allows stride() to be used as `configurationValues`

Start by finding where configurationValues are defined and validated in the Swift macro library, then read the tests around generated snapshot tests. The issue asks whether Strideable, or perhaps Comparable, should be accepted so stride() can be used for configurationValues. Done means that use case is supported and covered by tests.

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