build(deps): bump opentelemetry-appender-tracing from 0.30.1 to 0.31.1

Bumps [opentelemetry-appender-tracing](https://github.com/open-telemetry/opentelemetry-rust) from 0.30.1 to 0.31.1.
- [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](https://github.com/open-telemetry/opentelemetry-rust/commits)

---
updated-dependencies:
- dependency-name: opentelemetry-appender-tracing
  dependency-version: 0.31.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -16,7 +16,7 @@ tokio = { version = "1.47.1", features = ["full"] }
 tower-http = { version = "0.6.6", features = ["cors", "trace"] }
 tracing = "0.1.41"
 tracing-subscriber = { version = "0.3.19", features = ["json"] }
-opentelemetry-appender-tracing = "0.30.1"
+opentelemetry-appender-tracing = "0.31.1"
 opentelemetry = "0.28.0"
 opentelemetry_sdk = { version = "0.28.0", features = ["rt-tokio"] }
 opentelemetry-otlp = { version = "0.28.0", default-features = false, features = ["http-json", "reqwest", "reqwest-client"] }