Fix CI Coveralls Exception

coveralls.exception.CoverallsException: Got coverage library error: Couldn't parse 'tin/apps/assignments/tasks.py' as Python source: 'multiple exception types must be parenthesized' at line 57

Author: krishnans2006

tin/apps/assignments/tasks.py

@@ -54,7 +54,7 @@ def run_moss(moss_result_id):
         url = runner.send()
         moss_result.url = url
         moss_result.status = "Done"
-    except ConnectionResetError, BrokenPipeError:
+    except (ConnectionResetError, BrokenPipeError):
         moss_result.status = "Invalid Moss User ID"
     except ConnectionError:
         moss_result.status = "Connection refused"