Add new button text to dismiss dialog app. (#2388)

iOS-16 has a new dialog that is not being dismissed with
the existing options in the dismiss dialog app.

Bug:https://github.com/flutter/flutter/issues/118411
diff --git a/device_doctor/tool/infra-dialog/infra-dialogUITests/infra_dialogUITests.swift b/device_doctor/tool/infra-dialog/infra-dialogUITests/infra_dialogUITests.swift
index 9483fd3..4b498ed 100644
--- a/device_doctor/tool/infra-dialog/infra-dialogUITests/infra_dialogUITests.swift
+++ b/device_doctor/tool/infra-dialog/infra-dialogUITests/infra_dialogUITests.swift
@@ -19,7 +19,7 @@
 
         // If the device has low battery or bad cable, report as infra failure.
         let failureTexts = ["Low Battery", "This accessory may not be supported"]
-        let buttonTexts = ["OK", "Later", "Allow", "Remind Me Later", "Close"]
+        let buttonTexts = ["OK", "Later", "Allow", "Remind Me Later", "Close", "Dismiss"]
 
         // Sometimes a second dialog pops up when one is closed, so let's run 3 times.
         for _ in 0..<3 {