Run pod repo update in iOS extension test (#73442)

dev/devicelab/bin/tasks/ios_app_with_extensions_test.dart

@@ -30,6 +30,10 @@ Future<void> main() async {
         projectDir,
       );
 
+      // For some reason devicelab machines have really old spec snapshots.
+      // TODO(jmagman): Remove this if this test is moved to a machine that installs CocoaPods on every run.
+      await eval('pod', <String>['repo', 'update', '--verbose']);
+
       section('Create release build');
 
       await inDirectory(projectDir, () async {

dev/integration_tests/ios_app_with_extensions/ios/Podfile

@@ -39,7 +39,7 @@ target 'watch Extension' do
   use_frameworks!
   use_modular_headers!
 
-  pod 'EFQRCode/watchOS', '5.1.6'
+  pod 'EFQRCode', '6.0'
 end
 
 post_install do |installer|