fix(deps): update dependency probot to v12 [security]

Author: renovate[bot]

package.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "js-yaml": "3.14.2",
-    "probot": "9.15.1"
+    "probot": "12.3.3"
   },
   "devDependencies": {
     "@types/bunyan": "1.8.11",