Rollup merge of rust-lang#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.

Author: JohnTitor

triagebot.toml

@@ -5,8 +5,8 @@ allow-unauthenticated = [
     "requires-nightly",
     "regression-*",
     "perf-*",
-    # I-* without I-nominated
-    "I-*", "!I-nominated",
+    # I-* without I-*nominated
+    "I-*", "!I-*nominated",
     "AsyncAwait-OnDeck",
 ]