Update docs for security_approval_policies_limit application setting

What does this MR do and why?

This MR updates docs for security_approval_policies_limit application setting.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

assigned to @mcavoj

mentioned in issue #442415 (closed)

@rdickenson based on the discussion in #442415 (comment 1794909680), could you please review these documentation changes?

requested review from @rdickenson

Proper labels assigned to this merge request. Please ignore me.

@mcavoj - please see the following guidance and update this merge request.

	1 Error
	Please add typebug typefeature, or typemaintenance label to this merge request.

added documentation label

	1 Message
	This merge request adds or changes documentation files. A review from the Technical Writing team before you merge is recommended. Reviews can happen after you merge.

Documentation review

The following files require a review from a technical writer:

• doc/api/settings.md (Link to current live version)

The review does not need to block merging this merge request. See the:

• Metadata for the *.md files that you've changed. The first few lines of each *.md file identify the stage and group most closely associated with your docs change.
• The Technical Writer assigned for that stage and group.
• Documentation workflows for information on when to assign a merge request for review.

If needed, you can retry the danger-review job that generated this comment.

Generated by Danger

added docs-only label

changed milestone to %16.10

added typemaintenance label

resolved all threads

added groupsecurity policies label

added Technical Writing docsfeature labels

added Category:Security Policy Management devopsgovern sectionsec labels

approved this merge request

added 1 commit

• ac60344e - Apply 1 suggestion(s) to 1 file(s)

Compare with previous version

resolved all threads

merged

@mcavoj I've reviewed, approved, and merged this MR.

mentioned in commit 2512d505

added workflowstaging-canary label

added workflowcanary label and removed workflowstaging-canary label

added workflowstaging label and removed workflowcanary label

added workflowproduction label and removed workflowstaging label

added workflowpost-deploy-db-production label and removed workflowproduction label

mentioned in merge request kubitus-project/kubitus-installer!2869 (merged)

added releasedpublished label