chore(deps): update @slack/bolt requirement from ^4.2.0 to ^4.2.1 in /examples/deploy-aws-lambda (#2475)

Author: dependabot[bot]

examples/deploy-aws-lambda/package.json

@@ -9,7 +9,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@slack/bolt": "^4.2.0"
+    "@slack/bolt": "^4.2.1"
   },
   "devDependencies": {
     "serverless": "^4.4.18",