Backport of Reverse the order of conversion/defaults, and update HCL with more flexible defaults package into v1.3

[teamterraform]

Backport

This PR is auto-generated from #32454 to be assessed for backporting due to the inclusion of the label 1.3-backport.

WARNING automatic cherry-pick of commits failed. Commits will require human attention.

The below text is copied from the body of the original PR.

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• Update to latest version of HCL, with flexible defaults package.
• Add test case that demonstrates failure of conversion before defaults with any type constraint.
• Apply defaults before conversion, in line with new HCL version.

Fixes #32396

Target Release

1.3.8 / 1.3.9 / 1.4.0

Draft CHANGELOG entry

BUG FIXES

• Fix terraform crash when applying defaults into a collection with dynamic type constraint.

[github-actions]

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[github-actions]

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