Docs: Fix GitHub action example

[Mahdi-Hazrati]

update node version from 16 to 20, for can build next js latest

Closes #

What I did

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

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

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>

Greptile Summary

This pull request updates the Node.js version from 16.x to 20.x in the GitHub Actions workflow for building and publishing Storybook to GitHub Pages.

• Updated Node.js version to 20.x in docs/_snippets/ghp-github-action.md
• Addresses a building issue in GitHub Pages for latest Next.js applications
• Ensures compatibility with newer Node.js features and improvements
• May require verification of compatibility with existing dependencies and functionality

[greptile-apps]

LGTM

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[jonniebigodes]

@Mahdi-Hazrati, thanks for taking the time to put together this example and helping us improve the documentation by catching this minor issue with our examples. We appreciate it 🙏 ! I've checked, and everything is good on my end.

I'll gladly merge this once the checklist clears.

Have a fantastic week.

Stay safe

[nx-cloud]

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[Mahdi-Hazrati]

@Mahdi-Hazrati, thanks for taking the time to put together this example and helping us improve the documentation by catching this minor issue with our examples. We appreciate it 🙏 ! I've checked, and everything is good on my end.

I'll gladly merge this once the checklist clears.

Have a fantastic week.

Stay safe

Thank you so much for your kind words and support! 🙌 I'm really glad I could contribute and help improve the documentation. It's been a great experience working with the Storybook team and community.