fix(deps): update dependency probot to v13.4.0

Author: renovate[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "deep-equal": "2.2.3",
     "deepmerge": "4.3.1",
     "js-yaml": "4.1.0",
-    "probot": "13.3.9"
+    "probot": "13.4.0"
   },
   "devDependencies": {
     "@cucumber/cucumber": "11.1.0",