See the announcement:
To all devs: please update your cards if you happen to use those elements, i.e. paper-dropdown-menu and paper-input (and please nobody complains anymore when they get a 4 months removal notice from core 
)
Let’s try to avoid a sh**storm in 2022.3 
EDIT: To HA team: a 1-2 week notice before a potential bunch of custom card would break for your users is not exactly streamlining, is it? 