chore(cargo): bump async-channel from 2.2.0 to 2.2.1

Bumps [async-channel](https://github.com/smol-rs/async-channel) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/smol-rs/async-channel/releases)
- [Changelog](https://github.com/smol-rs/async-channel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/smol-rs/async-channel/compare/v2.2.0...v2.2.1)

---
updated-dependencies:
- dependency-name: async-channel
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

deltachat-jsonrpc/Cargo.toml

@@ -20,7 +20,7 @@ schemars = "0.8.13"
 serde = { version = "1.0", features = ["derive"] }
 tempfile = "3.10.1"
 log = "0.4"
-async-channel = { version = "2.0.0" }
+async-channel = { version = "2.2.1" }
 futures = { version = "0.3.30" }
 serde_json = "1"
 yerpc = { version = "0.5.2", features = ["anyhow_expose", "openrpc"] }