chore: use shared workos/renovate-config preset

Extends github>workos/renovate-config (which already includes
config:recommended) so shared org settings take precedence.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: gjtorikian

renovate.json

@@ -1,8 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "github>workos/renovate-config",
-    "config:recommended"
+    "github>workos/renovate-config"
   ],
   "dependencyDashboard": false,
   "schedule": [