dcm fix --only-rules=prefer-trailing-comma lib test test_data integration_test

test_data/gallery.dart

@@ -47,6 +47,6 @@ List<gallery.Image> getTestImages() {
           'https://raw.githubusercontent.com/wger-project/flutter/master/fastlane/metadata/android/en-US/images/phoneScreenshots/06%20-%20weight.png',
       description: '',
       date: DateTime(2021, 2, 22),
-    )
+    ),
   ];
 }

test_data/screenshots_exercises.dart

@@ -202,7 +202,7 @@ final squatsTranslations = [
   squatsEN,
   squatsEL,
   squatsAR,
-  squatsZH
+  squatsZH,
 ];
 
 final benchPressDE = Translation(
@@ -492,7 +492,7 @@ final crunchesTranslations = [
   crunchesRU,
   crunchesHE,
   crunchesAR,
-  crunchesZH
+  crunchesZH,
 ];
 
 final curlsEN = Translation(