Update dependency probot to v9.6.1

Author: renovate-bot

package.json

@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "compare-versions": "3.4.0",
-    "probot": "9.3.1",
+    "probot": "9.6.1",
     "probot-config": "1.0.0",
     "request": "2.88.0"
   },