Removed SCA related headers and updated feature status

What does this MR do and why?

Updates pipeline SD status to GA.

Removes 2 SCA-related headers that didn't include content and are unrelated to SD.

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changed milestone to %16.11

added documentation groupsecret detection labels

assigned to @smeadzinger

added devopssecure sectionsec labels

	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/user/application_security/secret_detection/pipeline/index.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.

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Generated by Danger

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

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

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

added docs-only label

requested review from @rdickenson

assigned to @rdickenson

added typemaintenance label

resolved all threads

added Technical Writing label

approved this merge request

merged

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

mentioned in commit db17c10e

added workflowstaging-canary label

added workflowcanary label and removed workflowstaging-canary label

added workflowproduction label and removed workflowcanary label

added workflowstaging label and removed workflowproduction label

added workflowpost-deploy-db-staging label and removed workflowstaging label

added releasedcandidate label

added releasedpublished label and removed releasedcandidate label