* Updating the license from MPL to Business Source License
Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at https://hashi.co/license-faq, and details of the license at www.hashicorp.com/bsl.
* Update copyright file headers to BUSL-1.1
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Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
When an override block is either not an object, or if one of its
contents are not an object, Packer would crash trying to forcefully
cast the cty.Value to a cty.Collection.
To avoid this behaviour, we add extra checks that return hcl.Diagnostics
when they fail.