Bump opentelemetry-semantic-conventions from 0.26.0 to 0.31.0

Bumps [opentelemetry-semantic-conventions](https://github.com/open-telemetry/opentelemetry-rust) from 0.26.0 to 0.31.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-rust/blob/main/docs/release_0.30.md)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-semantic-conventions-0.26.0...v0.31.0)

---
updated-dependencies:
- dependency-name: opentelemetry-semantic-conventions
  dependency-version: 0.31.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -49,7 +49,7 @@ opentelemetry-otlp = { version = "0.26", features = [
     "grpc-tonic",
     "trace",
 ], optional = true }
-opentelemetry-semantic-conventions = { version = "0.26", optional = true }
+opentelemetry-semantic-conventions = { version = "0.31", optional = true }
 opentelemetry_sdk = { version = "0.26", features = [
     "rt-tokio",
     "trace",