Revert bind single elements to array in configuration binder

[safern]

The change we introduced in: #57204 and #57872 have raised two breaks in RC1, I think we are very late in the cycle to introduce more risk and try to fix those issues.

#58852
#58330

We should revert this change and then try to do it again on 7.0.0 considering both issues that have been raised.

We should port this to 6.0 branch as well.

cc: @ericstj@danmoseley@vidommet

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Issue Details

---

The change we introduced in: #57204 and #57872 have raised two breaks in RC1, I think we are very late in the cycle to introduce more risk and try to fix those issues.

#58852
#58330

We should revert this change and then try to do it again on 7.0.0 considering both issues that have been raised.

We should port this to 6.0 branch as well.

cc: @ericstj@danmoseley@vidommet

Author:	safern
Assignees:	-
Labels:	area-Extensions-Configuration
Milestone:	-

[ericstj]

I'm supportive of a revert here.

[safern]

/backport to release/6.0

[github-actions]

Started backporting to release/6.0: https://github.com/dotnet/runtime/actions/runs/1284748506