Auto merge of rust-lang#6688 - rust-lang:triagebot_update, r=phansch

Update triagebot.toml to new label names

changelog: none

Author: bors

triagebot.toml

@@ -1,7 +1,7 @@
 [relabel]
 allow-unauthenticated = [
-    "A-*", "C-*", "E-*", "L-*", "M-*", "O-*", "P-*", "S-*", "T-*",
-    "good-first-issue"
+    "A-*", "C-*", "E-*", "I-*", "L-*", "P-*", "S-*", "T-*",
+    "good first issue"
 ]
 
 [assign]