fix: build and test survey_kit_image_answer against local survey_kit

.github/workflows/.github-actions.yml

@@ -17,5 +17,19 @@ jobs:
         with:
           channel: "stable"
       - run: flutter pub get
-      - run: flutter analyze
-      - run: flutter test
+      # Test the sub-package against this repo's survey_kit, not the old version from pub.dev.
+      - run: |
+          cat > pubspec_overrides.yaml <<'EOF'
+          dependency_overrides:
+            survey_kit:
+              path: ../..
+          EOF
+        working-directory: packages/survey_kit_image_answer
+      # The root analyze also reads packages/, so their dependencies must be resolved first.
+      - run: flutter pub get
+        working-directory: packages/survey_kit_image_answer
+      # Infos are not fatal: some deprecation replacements need a newer Flutter than the package supports.
+      - run: flutter analyze --no-fatal-infos
+      - run: flutter test
+      - run: flutter test
+        working-directory: packages/survey_kit_image_answer

packages/survey_kit_image_answer/lib/src/view/image_answer_view.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 import 'package:survey_kit/survey_kit.dart';
+import 'package:survey_kit_image_answer/src/answer_format/image_answer_format.dart';
+import 'package:survey_kit_image_answer/src/result/image_question_result.dart';
 
 class ImageAnswerView extends StatefulWidget {
   final QuestionStep questionStep;

packages/survey_kit_image_answer/test/image_question_result_test.dart

@@ -1,5 +1,6 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:survey_kit/survey_kit.dart';
+import 'package:survey_kit_image_answer/survey_kit_image_answer.dart';
 
 void main() {
   final tResult = ImageQuestionResult(