import: only filter id attribute at root level when generating config

[liamcervante]

The legacy SDK introduces an id attribute at the root level of resources. This caused invalid config to be generated for the legacy SDK. To avoid this we introduced a filter that removed this attribute from the generated config. This workaround is discussed here: https://github.com/hashicorp/terraform/blob/main/internal/terraform/node_resource_plan_instance.go#L751-L761.

The linked issue highlights we were also removing computed and optional id attributes from within nested attributes and blocks. These id attributes are not introduced by the SDK, so I've changed the filter functionality to accept a path instead of an attribute name and it now only removes attributes at the root level instead of across the whole schema.

Fixes #35178

Target Release

1.8.4

Draft CHANGELOG entry

BUG FIXES

• import blocks: Fix bug where resources with nested, computed, and optional id attributes would fail to generate.

[kmoe]

Nice

[github-actions]

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[github-actions]

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