Only run workflows if they might be able to work (#63164)

.github/workflows/publish-technical-documentation-next.yml

@@ -9,7 +9,7 @@ on:
   workflow_dispatch:
 jobs:
   sync:
-    if: "github.repository == 'grafana/grafana'"
+    if: github.repository == 'grafana/grafana'
     runs-on: "ubuntu-latest"
     steps:
       - name: "Checkout Grafana repo"