feat: add cast function for array

[chiui-li]

Description

add function: cast for array, cast value into an array if it is not an array

Checklist

• [x] Changes are covered by tests if behavior has been changed or added
• [x] Tests have 100% coverage
• [x] If code changes were made, the version in package.json has been bumped (matching semver)
• [x] If code changes were made, the yarn build command has been run and to update the cdn directory
• [x] If code changes were made, the documentation (in the /docs directory) has been updated

Resolves

If the PR resolves an open issue tag it here. For example, Resolves #34

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Name	Status	Preview	Comments	Updated (UTC)
radash-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 25, 2024 3:28pm

[aleclarson]

I believe the more popular term is arrify or arraify

[aleclarson]

Hi @chiui-li, we added castArray over at the Radashi fork: https://github.com/radashi-org/radashi/pull/97

You can use it today by installing radashi@beta. An official release is pending.