Bump subxt from 0.21.0 to 0.22.0 (#612)

* Bump subxt from 0.21.0 to 0.22.0

Bumps [subxt](https://github.com/paritytech/subxt) from 0.21.0 to 0.22.0.
- [Release notes](https://github.com/paritytech/subxt/releases)
- [Changelog](https://github.com/paritytech/subxt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/paritytech/subxt/compare/v0.21.0...v0.22.0)

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

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* Fix errors

* Fmt

* Fmt with same version as CI nightly

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: ascjones <ascjones@gmail.com>
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