Addon-actions: Fix falsy args printing as object - 22163

[Fatcat560]

Closes #22163

What I did

This PR tries to resolve some inconsistent behaviour while using falsy values along with the actions addon.

Previously, arguments which evaluate to false would be printed by the actions addon as an object to the actions console:

This also caused an issue with countdowns. Number printing would only work as expected until one hits the 0 mark:

With this PR, even falsy arguments print to the actions console as one would expect:

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

1. Modify the Type Boolean basic story in addons/actions/basics so that it randomly returns a boolean instead of a static one.
2. Start storybook as described in the contributing guide.
3. Open Storybook in your browser
4. Access the previously modified story and click the button multiple times so that both boolean values have been logged to the console.

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the @storybookjs/core team here.

core team members can create a canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=<PR_NUMBER>

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[kasperpeulen]

Thanks!