Bump opentelemetry-semantic-conventions from 0.26.0 to 0.29.0

Bumps [opentelemetry-semantic-conventions](https://github.com/open-telemetry/opentelemetry-rust) from 0.26.0 to 0.29.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-semantic-conventions-0.26.0...opentelemetry-semantic-conventions-0.29.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -51,7 +51,7 @@ opentelemetry_sdk = { version = "0.26", features = [
   "rt-tokio",
   "trace",
 ], optional = true }
-opentelemetry-semantic-conventions = { version = "0.26", optional = true }
+opentelemetry-semantic-conventions = { version = "0.29", optional = true }
 tracing-opentelemetry = { version = "0.27", optional = true }
 tracing-subscriber = { version = "0.3", optional = true }