fix: improve error message for missing PyCapsule name

Author: kosiew

src/utils.rs

@@ -107,9 +107,9 @@ pub(crate) fn parse_volatility(value: &str) -> PyDataFusionResult<Volatility> {
 pub(crate) fn validate_pycapsule(capsule: &Bound<PyCapsule>, name: &str) -> PyResult<()> {
     let capsule_name = capsule.name()?;
     if capsule_name.is_none() {
-        return Err(PyValueError::new_err(
-            "Expected schema PyCapsule to have name set.",
-        ));
+        return Err(PyValueError::new_err(format!(
+            "Expected {name} PyCapsule to have name set."
+        )));
     }
 
     let capsule_name = capsule_name.unwrap().to_str()?;