Bump opentelemetry-otlp from 0.28.0 to 0.29.0

Bumps [opentelemetry-otlp](https://github.com/open-telemetry/opentelemetry-rust) from 0.28.0 to 0.29.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-otlp-0.28.0...opentelemetry-otlp-0.29.0)

---
updated-dependencies:
- dependency-name: opentelemetry-otlp
  dependency-version: 0.29.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -97,7 +97,7 @@ tracing = "0.1.41"
 tracing-subscriber = {version = "0.3.19", features = ["std", "env-filter"]}
 tracing-opentelemetry = "0.29.0"
 opentelemetry = "0.28"
-opentelemetry-otlp = { version = "0.28", features = ["default", "grpc-tonic"] }
+opentelemetry-otlp = { version = "0.29", features = ["default", "grpc-tonic"] }
 opentelemetry-semantic-conventions = "0.29"
 opentelemetry_sdk = { version = "0.28", features = ["rt-tokio"] }
 tokio = { version = "1.44.1", features = ["full"] }