How can can I run tests using qtbot on macos Sonoma?

While there's an ongoing discussion on the github issue, and the new App Activation API is pointed out as a suspected culprit, what worked for me was to replace

def _process_events():
    """Calls app.processEvents() while taking care of capturing exceptions
    or not based on the given item's configuration.
    """
    app = qt_api.QtWidgets.QApplication.instance()
    if app is not None:
        app.processEvents()

with

def _process_events():
    """Calls app.processEvents() while taking care of capturing exceptions
    or not based on the given item's configuration.
    """
    app = qt_api.QtWidgets.QApplication.instance()
    if app is not None:
        # app.processEvents()
        pass

in pytestqt/plugin.py.

In my case, I was able to edit it from PyCharm, it was under "External libraries -> Python 3.11 -> site-packages -> pytestqt -> plugin.py".

Not sure if it broke some other important functionality in qtbot, but at least my tests began to pass, and unblocked me in the short run.