Run Renovate with changes enabled by default

.github/workflows/renovate.yml

@@ -14,7 +14,7 @@ on:  # yamllint disable-line rule:truthy
       dry_run:
         description: 'Run without making changes'
         required: false
-        default: true
+        default: false
         type: boolean
       log_level:
         description: 'Renovate log level'