[BUG] Click and Button Presses don't work on Windows CI with `pympl` dependency

If someone had just a moment, it would be tremendously helpful to get some feedback about the failed CIs here https://github.com/mne-tools/mne-python/pull/10913. Basically, the tests that use fake clicking and key presses with matplotlib fail when ipympl is added as a dependency but only on Windows. I've checked and they pass locally on MacOS as well as on the CIs. Is there some global variable or setting that ipympl might be modifying and maybe we could change it back? The difference between all the 22 tests failing and all the tests passing was just adding ipympl to the dependencies list, it was run before and after adding those. Thanks!

Inizia dalla CI di Windows fallita in pull request #10913 e individua i 22 test che simulano clic e pressioni di tasti in matplotlib. Confronta le esecuzioni prima e dopo l’aggiunta di ipympl alle dipendenze, quindi determina quale modifica fa sì che questi test abbiano esito positivo su Windows con la dipendenza presente.