Speak up or shut up!

I vote for moving on and leave it in the past. Wipe the slate clean and start again. It’s been an utterly s* year for children as well as adults. There’s enough to be worrying about currently without raking over the coals from months ago.

I think I would just say "We've moved past that now" and talk about something else.

To quote the child’s words back to her seems a bit confrontational to me, and I certainly would advise against doing this unprompted (as in you broaching the subject).
If the child brings it up again then maybe say something, but I’d be more inclined to focus on how the child felt at the time and what had upset her - that way she’s exploring her feelings independently, it might make for a productive conversation.

“Be the bigger person” ?

Oh gosh I d leave it why rake up something that’s long passed

You could say something along the lines of,
"Yes, you were rude to me weren't you, and that's not nice is it, we don't be rude to people do we?"
You're acknowledging what she did, and that it was wrong, but keeping her onside.
I use this strategy with my minded children and it's very effective.
When she (hopefully!) agrees with you, then say,
"But we're friends now, aren't we?"
And leave it at that ?

Dont encourage a conversation but dont ignore her either.

Say something child centred like 'You seem to want to talk about it, but I don't like arguments so I'm not going to'.
Then start another conversation based on something you know she likes. Distraction after confrontation.

She definitely knows what she is doing, but it's unclear why she is drawing attention to it.

I think there is a power struggle going on with her and someone in authority, and she is taking it out on you.
I could well be barking up the wrong tree, if so feel free to ignore!

Hmm, tricky, possibly say "So what do you remember about that, and what do you think about it now?"

Might give her chance to realise how bad her attitude was, and how her behaviour towards you was unacceptable.

I would let your daughter deal with it and refuse to give her any satisfaction by reacting.

I would just say "No, I'm choosing not to".
Then I would choose not to.