Update outdated ios setup link in error message (#84246)

packages/flutter_tools/lib/src/ios/code_signing.dart

@@ -45,7 +45,7 @@ It's also possible that a previously installed app with the same Bundle\u0020
 Identifier was signed with a different certificate.
 
 For more information, please visit:
-  https://flutter.dev/setup/#deploy-to-ios-devices
+  https://flutter.dev/docs/get-started/install/macos#deploy-to-ios-devices
 
 Or run on an iOS simulator without code signing
 ════════════════════════════════════════════════════════════════════════════════''';
@@ -59,7 +59,7 @@ Provisioning Profile. Please ensure that a Development Team is selected by:
 $fixWithDevelopmentTeamInstruction
 
 For more information, please visit:
-  https://flutter.dev/setup/#deploy-to-ios-devices
+  https://flutter.dev/docs/get-started/install/macos#deploy-to-ios-devices
 
 Or run on an iOS simulator without code signing
 ════════════════════════════════════════════════════════════════════════════════''';