chore(deps): Bump opentelemetry-otlp from 0.29.0 to 0.31.0

Bumps [opentelemetry-otlp](https://github.com/open-telemetry/opentelemetry-rust) from 0.29.0 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-otlp-0.29.0...v0.31.0)

---
updated-dependencies:
- dependency-name: opentelemetry-otlp
  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

@@ -52,7 +52,7 @@ tracing = "0.1.37"
 tracing-subscriber = { version = "0.3.20", features = ["json", "env-filter"] }
 tracing-opentelemetry = "0.30.0"
 opentelemetry = { version = "0.29.1" }
-opentelemetry-otlp = { version = "0.29.0", features = ["grpc-tonic", "logs"]}
+opentelemetry-otlp = { version = "0.31.0", features = ["grpc-tonic", "logs"]}
 opentelemetry_sdk = { version = "0.29.0" }
 thiserror = "2.0.17"
 anyhow = "1.0.100"