chore(deps): update @slack/bolt requirement from ^4.2.0 to ^4.2.1 in /examples/getting-started-typescript (#2478)

Author: dependabot[bot]

examples/getting-started-typescript/package.json

@@ -10,7 +10,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@slack/bolt": "^4.2.0",
+    "@slack/bolt": "^4.2.1",
     "dotenv": "^16"
   },
   "devDependencies": {