Update setup.cfg

All references to the cgi module have all been removed so there's no
longer a need to silence those deprecation warnings.

The deprecation warning for certifi is resolved as of version 2022.09.24.

Signed-off-by: Vincent Fazio <vfazio@gmail.com>

setup.cfg

@@ -20,8 +20,6 @@ combine_as_imports = True
 addopts = -rxXs
 filterwarnings =
   error
-  default:path is deprecated:DeprecationWarning:certifi
-  default:'cgi' is deprecated:DeprecationWarning
 asyncio_mode = strict
 markers =
   copied_from(source, changes=None): mark test as copied from somewhere else, along with a description of changes made to accodomate e.g. our test setup