Bump @message-queue-toolkit/sns from 20.0.0 to 21.0.0 (#525)

Bumps [@message-queue-toolkit/sns](https://github.com/kibertoad/message-queue-toolkit) from 20.0.0 to 21.0.0.
- [Release notes](https://github.com/kibertoad/message-queue-toolkit/releases)
- [Commits](https://github.com/kibertoad/message-queue-toolkit/commits)

---
updated-dependencies:
- dependency-name: "@message-queue-toolkit/sns"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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packages/app/events-common/package.json

@@ -37,7 +37,7 @@
         "@biomejs/biome": "^1.9.4",
         "@lokalise/biome-config": "^1.5.0",
         "@lokalise/package-vite-config": "latest",
-        "@message-queue-toolkit/sns": "^20.0.0",
+        "@message-queue-toolkit/sns": "^21.0.0",
         "@vitest/coverage-v8": "^3.0.7",
         "rimraf": "^6.0.1",
         "typescript": "5.8.2",