enable DF's nested_expressions feature by in datafusion-substrait tes…

…ts to make them pass

fixes #13854

datafusion/substrait/Cargo.toml

@@ -46,6 +46,7 @@ substrait = { version = "0.50", features = ["serde"] }
 url = { workspace = true }
 
 [dev-dependencies]
+datafusion = { workspace = true, features = ["nested_expressions"] }
 datafusion-functions-aggregate = { workspace = true }
 serde_json = "1.0"
 tokio = { workspace = true }