Update tracing-opentelemetry requirement from 0.21 to 0.22

Updates the requirements on [tracing-opentelemetry](https://github.com/tokio-rs/tracing-opentelemetry) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/tracing-opentelemetry/releases)
- [Changelog](https://github.com/tokio-rs/tracing-opentelemetry/blob/v0.1.x/CHANGELOG.md)
- [Commits](tokio-rs/tracing-opentelemetry@v0.21.0...v0.22.0)

---
updated-dependencies:
- dependency-name: tracing-opentelemetry
  dependency-type: direct:production
...

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

Cargo.toml

@@ -41,7 +41,7 @@ opentelemetry = {version = "0.20", features = ["rt-tokio"], optional = true}
 opentelemetry-otlp = {version = "0.13", features = ["http-proto", "reqwest-client"], default-features = false, optional = true}
 tracing = {version = "0.1", features = ["max_level_debug", "release_max_level_info"]}
 tracing-log = {version = "0.2"}
-tracing-opentelemetry = {version = "0.21", optional = true}
+tracing-opentelemetry = {version = "0.22", optional = true}
 tracing-subscriber = {version = "0.3", features = ["env-filter"]}
 
 # serialization/deserialization