build(deps): update opentelemetry-jaeger requirement

Updates the requirements on [opentelemetry-jaeger](https://github.com/open-telemetry/opentelemetry-rust) to permit the latest version.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@v0.20.0...v0.21.0)

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

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

Author: dependabot[bot]

Cargo.toml

@@ -43,7 +43,7 @@ async-trait = "0.1.56"
 criterion = { version = "0.5.1", default-features = false, features = ["html_reports"] }
 opentelemetry = { version = "0.21.0", features = ["trace", "metrics"] }
 opentelemetry_sdk = { version = "0.21.0", default-features = false, features = ["trace", "rt-tokio"] }
-opentelemetry-jaeger = "0.20.0"
+opentelemetry-jaeger = "0.21.0"
 opentelemetry-stdout = { version = "0.2.0", features = ["trace", "metrics"] }
 opentelemetry-otlp = { version = "0.14.0", features = ["metrics"] }
 opentelemetry-semantic-conventions = "0.13.0"