Remove suggestion to use already deprecated options

[Aleksander-Karlsson]

Why:

To keep documentation up to date with Dependency review action.

According to Dependency review action docs this is already deprecated, and might be removed.

⚠️ This option is deprecated for possible removal in the next major release. See Deprecate the deny-licenses option #938 for more information.
Contains a list of prohibited licenses. The action will fail on pull requests that introduce dependencies with licenses that match the list.

ref section https://github.com/actions/dependency-review-action/blob/main/README.md#configuration

Closes:

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

Removed the bullet point suggesting that using deny-list instead of allow-list for licenses is best practice.

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.

[github-actions]

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Table of review links

Note: Please update the URL for your staging server or codespace.

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
code-security/how-tos/secure-your-supply-chain/manage-your-dependency-security/configuring-the-dependency-review-action.md	fpt ghec ghes@ 3.19 3.18 3.17 3.16 3.15 3.14	fpt ghec ghes@ 3.19 3.18 3.17 3.16 3.15 3.14
code-security/tutorials/secure-your-dependencies/customizing-your-dependency-review-action-configuration.md	fpt ghec ghes@ 3.19 3.18 3.17 3.16 3.15 3.14	fpt ghec ghes@ 3.19 3.18 3.17 3.16 3.15 3.14

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

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