`cooldown` text should match docs

[jsoref]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/code-security/tutorials/secure-your-dependencies/optimizing-pr-creation-version-updates#setting-up-a-cooldown-period-for-dependency-updates

What part(s) of the article would you like to see updated?

You can use cooldown with a combination of options to control when Dependabot creates pull requests for version updates.

Additional information

Compare this text: https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference#cooldown-

Defines a cooldown period for dependency updates, allowing updates to be delayed for a configurable number of days. The cooldown option is only available for version updates, not security updates.

• See Configuration of a minimum package age required before a PR is created dependabot/dependabot-core#3651 (comment)