feat: refresh_column_async returns a job handle (#3939)

Mirrors create_index's dual surface: the blocking refresh_column keeps
returning {rows_filled, version}, and refresh_column_async returns the
same
Job handle create_index uses, running the refresh as an in-process task.
Invalid input is reported by the submitting call rather than by the job.

---

<sub>Stack created with <a
href="https://github.com/github/gh-stack">GitHub Stacks CLI</a> • <a
href="https://gh.io/stacks-feedback">Give Feedback 💬</a></sub>

python/src/table.rs

@@ -1559,6 +1559,17 @@ impl Table {
         })
     }
 
+    pub fn refresh_column_async(
+        self_: PyRef<'_, Self>,
+        column: String,
+    ) -> PyResult<Bound<'_, PyAny>> {
+        let inner = self_.inner_ref()?.clone();
+        future_into_py(self_.py(), async move {
+            let job = inner.refresh_column_async(column).await.infer_error()?;
+            Ok(crate::job::Job::new(job))
+        })
+    }
+
     pub fn add_columns_with_schema(
         self_: PyRef<'_, Self>,
         schema: PyArrowType<Schema>,