build(deps): bump opentelemetry-semantic-conventions

Bumps [opentelemetry-semantic-conventions](https://github.com/open-telemetry/opentelemetry-rust) from 0.14.0 to 0.15.0.
- [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
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -34,7 +34,7 @@ version = "0.15.0"
 features = ["tonic"]
 
 [dependencies.opentelemetry-semantic-conventions]
-version = "0.14.0"
+version = "0.15.0"
 
 [dependencies.opentelemetry_sdk]
 version = "0.22.1"