Just for completeness sake:
"Audacity" is a Latin word. And all those with ending -ity are feminine, identity authority (perhaps even pity, if it originates from "pietates") and so on. See French, Italian and even German.
Nonetheless, in this case it is a English word and as such neutral, especially since it is an allusion and implies "audio".
Very rarely, abstract words are personified but only in art and poetry, e.g lady "liberty" in a painting by Delacroixhttps://en.wikipedia.org/wiki/Liberty_L ... the_People