Bump jsonrpsee from 0.6.1 to 0.8.0 (#433)

* Bump jsonrpsee from 0.6.1 to 0.8.0

Bumps [jsonrpsee](https://github.com/paritytech/jsonrpsee) from 0.6.1 to 0.8.0.
- [Release notes](https://github.com/paritytech/jsonrpsee/releases)
- [Changelog](https://github.com/paritytech/jsonrpsee/blob/master/CHANGELOG.md)
- [Commits](https://github.com/paritytech/jsonrpsee/compare/v0.6.1...v0.8.0)

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

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

* Fix jsonrpsee errors

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrew Jones <[email protected]>