Format code/fix broken CI build (#21997)

In #21981 the CI didn't run for whatever reason. I've merged based off
of CI state alone and that led to CI breaking on main.

Release Notes:

- N/A

crates/languages/src/python.rs

@@ -375,7 +375,7 @@ impl ContextProvider for PythonContextProvider {
                         args: vec![
                             "-m".to_owned(),
                             "unittest".to_owned(),
-                            PYTHON_TEST_TARGET_TASK_VARIABLE.template_value_with_whitespace()
+                            PYTHON_TEST_TARGET_TASK_VARIABLE.template_value_with_whitespace(),
                         ],
                         tags: vec![
                             "python-unittest-class".to_owned(),