Bump @polkadot/api from 10.11.2 to 16.2.2

---
updated-dependencies:
- dependency-name: "@polkadot/api"
  dependency-version: 16.2.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]