workflow: update elastic/workflows reference to elastic/dev-docs-workflows for docs-versioned-publish.yml (elastic#3080)

## Details

⚠️ This PR was created by an automated tool. Please review the changes
carefully. ⚠️

This change updates workflow references from:
```yaml
uses: elastic/workflows/.github/workflows/docs-versioned-publish.yml
```

to:
```yaml
uses: elastic/dev-docs-workflows/.github/workflows/docs-versioned-publish.yml
```

This ensures workflows are using the correct repository reference for
dev docs publishing.

If there are any questions, please reach out to the
@elastic/docs-engineering

For more details, please see:
elastic/docs-eng-team#179

Author: reakaleek

.github/workflows/co-docs-builder.yml

@@ -21,7 +21,7 @@ on:
 jobs:
   publish:
     if: contains(github.event.pull_request.labels.*.name, 'ci:doc-build')
-    uses: elastic/workflows/.github/workflows/docs-versioned-publish.yml@main
+    uses: elastic/dev-docs-workflows/.github/workflows/docs-versioned-publish.yml@main
     with:
       # Refers to Vercel project
       project-name: elastic-dot-co-docs-preview-docs