[flutter_releases] Removing minor iOS version filter value from ci.yaml (flutter#105059) (flutter#105629)

Author: Casey Hillers

.ci.yaml

@@ -129,7 +129,7 @@ platform_properties:
         ]
       os: Mac-12
       cpu: x86
-      device_os: iOS-15.1
+      device_os: iOS-15
       xcode: 13a233
   windows:
     properties: