docs: bump actions/checkout from v4 to v5

[jdothansen]

Why:

Closes:

What's being changed (if available, include any code snippets, screenshots, or gifs):

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require an SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing and the changes look good in the review environment.

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Table of review links

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The table shows the files in the content directory that were changed in this pull request. This helps you review your changes on a staging server. Changes to the data directory are not included in this table.

Source	Review	Production	What Changed
actions/tutorials/create-an-example-workflow.md	fpt ghec ghes@ 3.17 3.16 3.15 3.14	fpt ghec ghes@ 3.17 3.16 3.15 3.14	from reusable

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

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[Sharra-writes]

@jdothansen Hi, thanks for opening a pull request! Sorry for closing it briefly, empty PRs are usually bots and I was on autopilot. Could you maybe fill out some of the information? Perhaps provide a link for where you see the version for this got bumped up? It just lets me know there's an actual person here so I'm not going to bug the Actions team with "will this change break anything?" without even knowing whether it's a real update.

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This PR has been automatically closed because there has been no response to to our request for more information from the original author. Please reach out if you have the information we requested, or open an issue to describe your changes. Then we can reopen this PR and begin the review process.