auto build on test

Author: pfandzelter

test/test_all.py

@@ -452,7 +452,7 @@ def test_invoke_grpc(self) -> None:
     # check that everything is built
     try:
         os.stat(path.join(src_path, "manager"))
-    except subprocess.CalledProcessError as e:
+    except FileNotFoundError:
         try:
             print("Building...")
             subprocess.run(