[gitlab-org/gitlab] Docs: The scoped "automation" tag is missing the requisite double colon

### ROOT CAUSE The issue is that the "automation" label is scoped, but the "ml" scope is missing the double colon. This is causing a problem in the documentation. ### CODE FIX To fix this issue, you need to add the double colon to the "ml" scope in the "automation" label. Here is the fix:

yaml
labels:
  - automation::ml


This will ensure that the "ml" scope is correctly scoped under the "automation" label.