pytest.ini: disable the annoying DeprecationWarnings in pytest due to jcc

Example: <frozen importlib._bootstrap>:488: DeprecationWarning: builtin type __JArray_string_iterator has no __module__ attribute

python_files/test/pytest.ini

@@ -4,3 +4,5 @@
 
 [pytest]
 python_files=*.py
+filterwarnings =
+    ignore::DeprecationWarning