Fix linter warning

Author: sebastianrath

tests_e2e/scripts/debug_session.py

@@ -244,6 +244,7 @@ async def main():
             process.terminate()
             await process.wait()
         except ProcessLookupError:
+            # process already exited
             pass
 
         stdout_task.cancel()

tests_e2e/scripts/local_session.py

@@ -130,6 +130,7 @@ async def main():
             process.terminate()
             await process.wait()
         except ProcessLookupError:
+            # proxess already exited
             pass
         if drain_out:
             drain_out.cancel()