Replace unsupported Probo codex categories

Marketplace review flagged Developer Tools and Automation as
unsupported n8n codex category values. Keep Development and use
Utility per review guidance.

Signed-off-by: Cursor Agent <cursoragent@cursor.com>

Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>

packages/n8n-node/nodes/Probo/Probo.node.json

@@ -2,7 +2,7 @@
   "node": "n8n-nodes-probo",
   "nodeVersion": "1.0",
   "codexVersion": "1.0",
-  "categories": ["Development", "Developer Tools", "Automation"],
+  "categories": ["Development", "Utility"],
   "resources": {
     "credentialDocumentation": [
       {