(WIP) Update the parameter type annotations for pyqtSignal.__init__#107

BryceBeagle wants to merge 1 commit intopython-qt-tools:masterpython-qt-tools/PyQt5-stubs:masterfrom

BryceBeagle:bugfix/pyqtSignal-initBryceBeagle/PyQt5-stubs:bugfix/pyqtSignal-initCopy head branch name to clipboard