chore(deps-dev): bump @polkadot/typegen from 10.9.1 to 10.11.1

Bumps [@polkadot/typegen](https://github.com/polkadot-js/api/tree/HEAD/packages/typegen) from 10.9.1 to 10.11.1.
- [Release notes](https://github.com/polkadot-js/api/releases)
- [Changelog](https://github.com/polkadot-js/api/blob/master/CHANGELOG.md)
- [Commits](https://github.com/polkadot-js/api/commits/v10.11.1/packages/typegen)

---
updated-dependencies:
- dependency-name: "@polkadot/typegen"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -68,7 +68,7 @@
     "yargs": "^17.5.1"
   },
   "devDependencies": {
-    "@polkadot/typegen": "10.9.1",
+    "@polkadot/typegen": "10.11.1",
     "@types/big.js": "6.1.2",
     "@types/jest": "^29.5.3",
     "@types/node": "^20.5.7",