Edit validation rules for devfile

What does this MR do and why?

Post-merge review of !169388 (merged) after the docs changes were lost in rebase

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changed milestone to %17.6

added Category:Workspaces Technical Writing docs-only docsimprovement documentation groupremote development maintenancerefactor typemaintenance labels

assigned to @ashrafkhamis

changed the description

added devopscreate sectiondev labels

requested review from @jglassman1

@jglassman1 Can you please review/merge these small changes? Details are in the description. Thanks! CC @zhaochen_li

	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/workspace/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.

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

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approved this merge request

resolved all threads

added this merge request to the merge train at position 2

merged

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-staging label and removed workflowproduction label

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

added releasedcandidate label