Enable valuable feature

Author: thomaseizinger

Cargo.toml

@@ -85,5 +85,5 @@ features = ["trace"]
 version = "0.29.0"
 
 [features]
-valuable = ["dep:valuable", "valuable-serde", "http", "url"]
+valuable = ["dep:valuable", "valuable-serde", "http", "url", "tracing/valuable"]
 opentelemetry = ["dep:opentelemetry", "tracing-opentelemetry"]