enable lint prefer_equal_for_default_values (#18156)

diff --git a/packages/flutter_tools/lib/src/ios/simulators.dart b/packages/flutter_tools/lib/src/ios/simulators.dart
index 84a5d91..edd3404 100644
--- a/packages/flutter_tools/lib/src/ios/simulators.dart
+++ b/packages/flutter_tools/lib/src/ios/simulators.dart
@@ -274,10 +274,10 @@
     String route,
     DebuggingOptions debuggingOptions,
     Map<String, dynamic> platformArgs,
-    bool prebuiltApplication: false,
-    bool applicationNeedsRebuild: false,
-    bool usesTerminalUi: true,
-    bool ipv6: false,
+    bool prebuiltApplication = false,
+    bool applicationNeedsRebuild = false,
+    bool usesTerminalUi = true,
+    bool ipv6 = false,
   }) async {
     if (!prebuiltApplication) {
       printTrace('Building ${package.name} for $id.');