fix(deps): update dependency @probot/adapter-aws-lambda-serverless to v4

Author: renovate[bot]

package.json

@@ -9,7 +9,7 @@
     "test": "node test.js"
   },
   "dependencies": {
-    "@probot/adapter-aws-lambda-serverless": "^3.0.0"
+    "@probot/adapter-aws-lambda-serverless": "^4.0.0"
   },
   "repository": "github:probot/example-aws-lambda-serverless",
   "keywords": [],