fix: Clarify that the example to list and delete caches on PR closure has a limit

[erezrokah]

Why:

Closes #26251

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

Added a clarification that the example deletes caches up to a limit, and not all caches. Also set the limit to the maximum value supported

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Content directory changes

You may find it useful to copy this table into the pull request summary. There you can edit it to share links to important articles or changes and to give a high-level overview of how the changes in your pull request support the overall goals of the pull request.

Source	Preview	Production	What Changed
actions/using-workflows/caching-dependencies-to-speed-up-workflows.md	fpt ghec ghes@ 3.9 3.8 3.7 3.6	fpt ghec ghes@ 3.9 3.8 3.7 3.6

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server
ghae: GitHub AE

[cmwilson21]

@erezrokah Thanks so much for opening a PR and linking it to your issue! And welcome to the community 🎉

I'll get this triaged for review ⚡

In the meantime, if you are looking for other ways to contribute, check out our help wanted section. 💖

[CBID2]

Hi @erezrokah! :) I'm @CBID2, nice to meet you! 😄 Aside from my suggestion and question, you're off to a good start with this revision! 😄 👍🏾

[CBID2]

Looks good to me

[erezrokah]

Looks good to me

Thanks for the review @CBID2 🚀 What are the next steps? I can see that the checks still say "Review required"

[SiaraMist]

Thank you again for making this fix @erezrokah! I'll go ahead and get this merged.

[github-actions]

Thanks very much for contributing! Your pull request has been merged 🎉 You should see your changes appear on the site in approximately 24 hours. If you're looking for your next contribution, check out our help wanted issues ⚡