Bump grammy from 1.20.4 to 1.21.1

Bumps [grammy](https://github.com/grammyjs/grammY) from 1.20.4 to 1.21.1.
- [Release notes](https://github.com/grammyjs/grammY/releases)
- [Commits](grammyjs/grammY@v1.20.4...v1.21.1)

---
updated-dependencies:
- dependency-name: grammy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -28,7 +28,7 @@
     "callback-data": "1.1.1",
     "dotenv": "16.4.4",
     "fastify": "4.26.1",
-    "grammy": "1.20.4",
+    "grammy": "1.21.1",
     "grammy-guard": "0.5.0",
     "iso-639-1": "3.1.0",
     "node-graceful-shutdown": "1.1.5",