fix(test): drop invalid const ThemeData in hover surface test

CI Flutter rejects ThemeData as a const constructor; keep the theme
fallback coverage without const_with_non_const.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ZhuchkaTriplesix

test/core/motion/querya_hover_surface_test.dart

@@ -111,8 +111,8 @@ void main() {
   testWidgets('uses theme fallback hovered color when unset', (tester) async {
     await tester.pumpWidget(
       MaterialApp(
-        theme: const ThemeData(
-          colorScheme: ColorScheme.light(primary: Colors.teal),
+        theme: ThemeData(
+          colorScheme: ColorScheme.fromSeed(seedColor: Colors.teal),
         ),
         home: const QueryaMotionScope(
           level: QueryaMotionLevel.full,