fix(deps): update dependency esbuild to v0.21.3 (#198)

Author: renovate-bot

examples/nested-messages/package.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@discord/embedded-app-sdk": "workspace:@discord/embedded-app-sdk@*",
     "dotenv": "^16.0.3",
-    "esbuild": "0.20.2",
+    "esbuild": "0.21.3",
     "eventemitter3": "^5.0.0",
     "express": "^4.19.2",
     "uuid": "^9.0.0"