Fix trailing whitespaces (#3205)

See https://github.com/pre-commit/pre-commit-hooks?tab=readme-ov-file#trailing-whitespace

render-test/ios/iosTestRunner.mm

@@ -28,7 +28,7 @@
     if (!self) {
         return nil;
     }
-    
+
     self.testStatus = NO;
     self.runner = new TestRunner();
     NSError *error;
@@ -39,10 +39,10 @@
 
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
     NSString *documentsDir = [paths objectAtIndex: 0];
-    
+
     NSString *destinationPath = [documentsDir stringByAppendingPathComponent: @"test-data"];
     NSString *path = destinationPath;
-    
+
     // delete destinationPath if it exists
     if ([fileManager fileExistsAtPath:destinationPath]) {
         success = [fileManager removeItemAtPath: destinationPath error: &error];

render-test/ios/tests/Tests.m

@@ -15,14 +15,14 @@
 }
 
 - (void)testStartRenderTestRunner {
-    IosTestRunner* runner = [[IosTestRunner alloc] init]; 
+    IosTestRunner* runner = [[IosTestRunner alloc] init];
     XCTAssert(runner, @"IOSTestRunner is not initialized correctly");
 
     NSString* styleResult = [runner getStyleResultPath];
     XCTAssert(styleResult, @"IOSTestRunner does not produce a style test result file");
     NSString* metricResult = [runner getMetricResultPath];
     XCTAssert(metricResult, @"IOSTestRunner does not produce a metric test result file");
-    
+
     NSFileManager *fileManager = [NSFileManager defaultManager];
     BOOL fileFound = [fileManager fileExistsAtPath: styleResult];
     XCTAssert(fileFound, @"Test result html '%@' does not exit", styleResult);