Bump jsonrpsee-core from 0.16.2 to 0.20.0

Bumps [jsonrpsee-core](https://github.com/paritytech/jsonrpsee) from 0.16.2 to 0.20.0.
- [Release notes](https://github.com/paritytech/jsonrpsee/releases)
- [Changelog](https://github.com/paritytech/jsonrpsee/blob/master/CHANGELOG.md)
- [Commits](paritytech/jsonrpsee@v0.16.2...v0.20.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -17,5 +17,5 @@ sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "mas
 futures = "0.3.28"
 async-trait = "0.1.73"
 thiserror = "1.0.47"
-jsonrpsee-core = "0.16.2"
+jsonrpsee-core = "0.20.0"
 parity-scale-codec = "3.6.4"