Rollup merge of #90129 - joshtriplett:triagebot-nominated, r=Mark-Simulacrum
Rollup merge of #90129 - joshtriplett:triagebot-nominated, r=Mark-Simulacrum

triagebot: Treat `I-*nominated` like `I-nominated`

rustbot doesn't allow unauthenticated users to set `I-nominated`; apply the same permissions to the new `I-*nominated` labels.

aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust