[3.12] gh-128615: Cover pickling of `ParamSpecArgs` and `ParamSpecKwargs` (GH-128616)#128626

AlexWaygood merged 1 commit intopython:3.12python/cpython:3.12from

miss-islington:backport-74a5171-3.12miss-islington/cpython:backport-74a5171-3.12Copy head branch name to clipboard