ci: fetch tags before we tag prod-previous.

Signed-off-by: Hiram Chirino <[email protected]>

.github/workflows/promote.yml

@@ -77,6 +77,7 @@ jobs:
       - name: Promote to the prod Tag
         shell: bash
         run: |
+          git fetch --tags
           git tag prod-previous prod --force
           git tag prod --force
           git push origin prod prod-previous --force