fix(rest/python): read signing_keys[] where the schema places it and drop the ucp.keys[] mirror by vishkaty · Pull Request #228 · Universal-Commerce-Protocol/samples

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@vishkaty

The following contributors were found for this pull request:

✅ a6209b3 PR Opener: @vishkaty
✅ 9b295ad Author: @katyalai <vi***l@katyal.ai>
✅ a6209b3 Author: @gswetha <gsw*******.sg@gmail.com>

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