Fix build script

Lib/Rakefile

@@ -7,7 +7,11 @@ end
 
 def destinations(platform: 'iphonesimulator')
   if platform == 'iphonesimulator'
-    if xcode_version.start_with?('10')
+    if xcode_version.start_with?('11')
+      [ 'name=iPhone Xs,OS=13.0',
+        'name=iPhone Xs,OS=12.2',
+      ]
+    elsif xcode_version.start_with?('10')
       [ 'name=iPhone 5s,OS=12.0',
         'name=iPhone 6,OS=12.0',
         'name=iPhone 6s Plus,OS=12.0',
@@ -79,7 +83,10 @@ def destinations(platform: 'iphonesimulator')
       ]
     end
   elsif platform == 'watchsimulator'
-    if xcode_version.start_with?('10')
+    if xcode_version.start_with?('11')
+      [ 'name=Apple Watch Series 4 - 44mm,OS=6.0'
+      ]
+    elsif xcode_version.start_with?('10')
       [ 'name=Apple Watch Series 4 - 40mm,OS=5.0',
         'name=Apple Watch Series 4 - 44mm,OS=5.0'
       ]
@@ -113,7 +120,10 @@ def destinations(platform: 'iphonesimulator')
       ]
     end
   elsif platform == 'appletvsimulator'
-    if xcode_version.start_with?('10')
+    if xcode_version.start_with?('11')
+      [ 'name=Apple TV 4K,OS=13.0'
+      ]
+    elsif xcode_version.start_with?('10')
       [ 'name=Apple TV 4K,OS=12.0'
       ]
     elsif xcode_version.start_with?('9.4')
@@ -176,7 +186,7 @@ namespace :build do
       if xcode_version.start_with?('11')
         t.add_build_setting('SWIFT_VERSION', '5.1')
         if platform == 'iphonesimulator'
-          t.add_destination('name=iPhone 11,OS=13.0')
+          t.add_destination('name=iPhone Xs,OS=13.0')
         elsif platform == 'watchsimulator'
           t.add_destination('name=Apple Watch Series 5 - 44mm,OS=6.0')
         elsif platform == 'appletvsimulator'