Document provider registry response property shasum

[sigwinch28]

Add a short summary of the shasum property in the Provider Registry Protocol's distribution package response documentation. The Response Properties section of the provider registry protocol does not mention the shasum property, but it is required and shown in the example.

Target Release

1.4.x

Draft CHANGELOG entry

BUG FIXES

• Added a description of the shasum object property to the registry protocol's documentation. This property is a required part of the response, but it was previously shown in the example response only without a corresponding reference.

[hashicorp-cla]

All committers have signed the CLA.

[crw]

Thanks for this submission! I've notified the docs team for review.

[github-actions[bot]]

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[github-actions[bot]]

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