Update .yamllint.yaml

Author: yxtay

.trunk/configs/.yamllint.yaml

@@ -1,7 +1,7 @@
 rules:
   quoted-strings:
     required: only-when-needed
-    extra-allowed: ["{|}"]
+    extra-allowed: ["{|}?"]
   key-duplicates: {}
   octal-values:
     forbid-implicit-octal: true