Fix API ref workflow

Previously in build-test-publish, a step would commit an API reference
to the wiki, for every commit. We have moved away from that practice,
and that change broke this workflow. The simplest solution is to
generate the Wiki page from the tag, as part of this workflow.

Author: Zerpet

.github/workflows/publish-versioned-api-ref.yml

@@ -26,11 +26,15 @@ jobs:
           repository: ${{ github.repository }}.wiki
           path: wiki
 
+      - name: Generate API reference
+        run: make -C messaging-topology-operator api-reference
+
       - name: Push to wiki
+        # User and email as documented here: https://github.com/marketplace/actions/checkout#push-a-commit-using-the-built-in-token
         run: |
           cd wiki
-          git config --local user.email "github-actions@github.com"
-          git config --local user.name "github-actions"
+          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
           # Add the versioned API Reference to the Wiki
           cp ../messaging-topology-operator/docs/api/rabbitmq.com.ref.asciidoc ./API_Reference_${{ steps.get_version.outputs.VERSION }}.asciidoc
           # Regenerate the ordered list of API Reference docs for the sidebar