Update opentelemetry_sdk requirement from 0.26.0 to 0.29.0

Updates the requirements on [opentelemetry_sdk](https://github.com/open-telemetry/opentelemetry-rust) to permit the latest version.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry_sdk-0.26.0...opentelemetry_sdk-0.29.0)

---
updated-dependencies:
- dependency-name: opentelemetry_sdk
  dependency-type: direct:production
...

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

Author: dependabot[bot]

example-service/Cargo.toml

@@ -26,7 +26,7 @@ tokio = { version = "1", features = ["macros", "net", "rt-multi-thread"] }
 tracing = { version = "0.1" }
 tracing-opentelemetry = "0.27.0"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
-opentelemetry_sdk = { version = "0.26.0", features = ["rt-tokio"] }
+opentelemetry_sdk = { version = "0.29.0", features = ["rt-tokio"] }
 opentelemetry-semantic-conventions = "0.16.0"
 
 [lib]

tarpc/Cargo.toml

@@ -70,7 +70,7 @@ flate2 = "1.0"
 futures-test = "0.3"
 opentelemetry = { version = "0.26.0", default-features = false }
 opentelemetry-otlp = "0.26.0"
-opentelemetry_sdk = { version = "0.26.0", features = ["rt-tokio"] }
+opentelemetry_sdk = { version = "0.29.0", features = ["rt-tokio"] }
 pin-utils = "0.1.0"
 serde_bytes = "0.11"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }