It's going to blow your mind to find out we rename entire countries IRL isn't it?

The originals of the books still exist, previous editions exist, they've been edited before and likely will be edited again. This happens on a daily basis, and not just with books. We re-write and redesign maps all the time, a city can change whatever it wants pretty much whenever it wants.

I assure you, and anyone else worried about this, that it's not Roald Dahl and other precious classic authors that the big scary censorship monster would really come for. Historically, authoritarian censorship has been used to target political enemies, easily evidenced by the famous book burnings engaged in by the nazis which started with research and educational materials about sexual health and understanding - especially pertaining to LGBT+ people, who were unfortunate targets of the holocaust as well - which set back our understanding of that for decades to come.

Charlie's chocolate factory will be fine, no one's going to purge it from the earth, and without a doubt the publishing company will either recant this soon enough - or else take the bold route of printing an uncut edition in a few years to make more money off of people who want to feel like they achieved a victory over them.