Fix install package to work with custom download_checksum

[tschroeder-zendesk]

Description

Fix install package to work with custom download_checksum. Currently you cannot specify the download_url or download_checksum so you cannot install newer versions then what already exists!

Issues Resolved

List any existing issues this PR resolves

Check List

• A summary of changes made is included in the CHANGELOG under ## Unreleased
• New functionality includes testing.
• New functionality has been documented in the README if applicable.

[damacus]

Can you add a changelog for this change please?

We'll be able to release that as soon as that's done 👍🏼

[tschroeder-zendesk]

Fixed so testing works and cookbook works with or without url/checksum defined. It seems new_resource doesn't exist for download_url or download_checksum unless they are defined, so it uses the old code when they are indeed undefined. This allows for actual override instead of getting an error of "Unsupported version" when you define for example just a download_checksum or both as that was a non-working case prior to this change.

[tschroeder-zendesk]

Okay... so finally found the root of the real issue. It was referencing the values in the defaults incorrectly causing issues. It also should be using new_resource always for the install_package. I have tested this with a bunch of value combinations and it should be good to go now.

[kitchen-porter]

Released as: 5.1.10

[damacus]

Excellent, thank you!