Rollup merge of #65064 - rust-lang:permit-asyncawait-ondeck-by-anyone, r=nikomatsakis

permit asyncawait-ondeck to be added by anyone

Still debating if this is the right approach

but r? @pietroalbini to check the format

triagebot.toml

@@ -3,7 +3,8 @@ allow-unauthenticated = [
     "C-*", "A-*", "E-*", "NLL-*", "O-*", "S-*", "T-*", "WG-*", "F-*",
     "requires-nightly",
     # I-* without I-nominated
-    "I-compilemem", "I-compiletime", "I-crash", "I-hang", "I-ICE", "I-slow",
+    "I-*", "!I-nominated",
+    "AsyncAwait-OnDeck",
 ]
 
 [assign]