[Detection Rules] Adding Documents for v8.9.12 Pre-Built Detection Rules

[protectionsmachine]

Security Doc updates for prebuilt security rule integration package version v8.9.12. Please note these are meant to merge into main only and not backport.

[github-actions]

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[terrancedejesus]

Closing. Base branch was incorrect and should be 8.9.

[mergify]

This pull request does not have a backport label. Could you fix it @protectionsmachine? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• v7.x is the label to automatically backport to the 7.x branch.
• v7./d./d is the label to automatically backport to the 7./d branch. /d is the digit

NOTE: backport-skip has been added to this pull request.