fix: add semconv_experimental flag (#943)

Author: maxday

lambda-runtime/Cargo.toml

@@ -41,7 +41,7 @@ hyper-util = { workspace = true, features = [
 ] }
 lambda_runtime_api_client = { version = "0.11.1", path = "../lambda-runtime-api-client", default-features = false }
 miette = { version = "7.2.0", optional = true }
-opentelemetry-semantic-conventions = { version = "0.27", optional = true }
+opentelemetry-semantic-conventions = { version = "0.27", optional = true, features = ["semconv_experimental"] }
 pin-project = "1"
 serde = { version = "1", features = ["derive", "rc"] }
 serde_json = "^1"