maybe fix tests

src/daft-connect/src/lib.rs

@@ -361,9 +361,19 @@ impl SparkConnectService for DaftSparkConnectService {
     #[tracing::instrument(skip_all)]
     async fn release_execute(
         &self,
-        _request: Request<ReleaseExecuteRequest>,
+        request: Request<ReleaseExecuteRequest>,
     ) -> Result<Response<ReleaseExecuteResponse>, Status> {
-        unimplemented_err!("release_execute operation is not yet implemented")
+        let request = request.into_inner();
+
+        let session = self.get_session(&request.session_id)?;
+
+        let response = ReleaseExecuteResponse {
+            session_id: session.client_side_session_id().to_string(),
+            server_side_session_id: session.server_side_session_id().to_string(),
+            operation_id: None, // todo: set but not strictly required
+        };
+
+        Ok(Response::new(response))
     }
 
     #[tracing::instrument(skip_all)]