Sync interfaces/ with @webref/idl 3.17.2 (#36060)

diff --git a/interfaces/device-posture.idl b/interfaces/device-posture.idl
index 75d6a45..ba8f9f5 100644
--- a/interfaces/device-posture.idl
+++ b/interfaces/device-posture.idl
@@ -17,4 +17,5 @@
 enum DevicePostureType {
   "continuous",
   "folded",
+  "folded-over"
 };