chore(deps): update opentelemetry-semantic-conventions requirement

Updates the requirements on [opentelemetry-semantic-conventions](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@opentelemetry-semantic-conventions-0.14.0...opentelemetry-semantic-conventions-0.15.0)

---
updated-dependencies:
- dependency-name: opentelemetry-semantic-conventions
  dependency-type: direct:production
...

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

modoh-bin/Cargo.toml

@@ -76,7 +76,7 @@ opentelemetry_sdk = { version = "0.22.1", features = [
 ], optional = true }
 opentelemetry-stdout = { version = "0.3.0", optional = true }
 opentelemetry-otlp = { version = "0.15.0", optional = true }
-opentelemetry-semantic-conventions = { version = "0.14.0", optional = true }
+opentelemetry-semantic-conventions = { version = "0.15.0", optional = true }
 
 # add random otel service id whenever restarting
 uuid = { version = "1.8.0", default-features = false, features = [