dependabot options: fix values for ignore update-types

[raboof]

Closes: #35862

Why:

The current documentation is incorrect, which you'll only notice after merging the change in configuration.

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 a 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.

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[github-actions]

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The table contains an overview of files in the content directory that have been changed in this pull request. It's provided to make it easy to review your changes on the staging site. Please note that changes to the data directory will not show up in this table.

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Content directory changes

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Source	Preview	Production	What Changed
code-security/dependabot/working-with-dependabot/dependabot-options-reference.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10

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

[nguyenalex836]

@raboof Thanks so much for opening a PR! I'll get this triaged for review ✨

[github-actions]

Thanks for opening a pull request! We've triaged this issue for technical review by a subject matter expert 👀

[mchammer01]

@RonRicardo 👋🏻 - I've added the github/dependabot-github-reviewers team to the list of reviewers. My understanding is that the workflow you added a while ago should have automatically done that (but I may be wrong). We can discuss this further internally, in the SME tracking issue 😅

[mchammer01]

@raboof 👋🏻 - thanks for noticing this inaccuracy ✨
LGTM

[github-actions]

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