Bump sc-client-api from polkadot-v1.9.0 to polkadot-v1.12.0

Bumps [sc-client-api](https://github.com/paritytech/polkadot-sdk) from polkadot-v1.9.0 to polkadot-v1.12.0.
- [Release notes](https://github.com/paritytech/polkadot-sdk/releases)
- [Changelog](https://github.com/paritytech/polkadot-sdk/blob/master/docs/RELEASE.md)
- [Commits](paritytech/polkadot-sdk@3c3d6fc...b401690)

---
updated-dependencies:
- dependency-name: sc-client-api
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>