feat(save image): output the file paths in the node

Why and what?
When We upload images to S3, all is good, but will be nice to have the path of where our images were saved.

With this, you can connect the `show text` node and easily check the path.

So later you can use that path to know how to fetch your images.

src/nodes/save_image_s3.py

@@ -28,15 +28,18 @@ class SaveImageS3:
             },
                 }
 
-    RETURN_TYPES = ()
+    RETURN_TYPES = ("STRING",)
+    RETURN_NAMES = ("s3_image_paths",)
     FUNCTION = "save_images"
     OUTPUT_NODE = True
+    OUTPUT_IS_LIST = (True,)
     CATEGORY = "ComfyS3"
 
     def save_images(self, images, filename_prefix="ComfyUI", prompt=None, extra_pnginfo=None):
         filename_prefix += self.prefix_append
         full_output_folder, filename, counter, subfolder, filename_prefix = S3_INSTANCE.get_save_path(filename_prefix, images[0].shape[1], images[0].shape[0])
         results = list()
+        s3_image_paths = list()
         
         for image in images:
             i = 255. * image.cpu().numpy()
@@ -62,8 +65,11 @@ class SaveImageS3:
 
                     # Upload the temporary file to S3
                     s3_path = os.path.join(full_output_folder, file)
-                    S3_INSTANCE.upload_file(temp_file_path, s3_path)
+                    file_path = S3_INSTANCE.upload_file(temp_file_path, s3_path)
 
+                    # Add the s3 path to the s3_image_paths list
+                    s3_image_paths.append(file_path)
+                    
                     # Add the result to the results list
                     results.append({
                         "filename": file,
@@ -77,4 +83,4 @@ class SaveImageS3:
                 if temp_file_path and os.path.exists(temp_file_path):
                     os.remove(temp_file_path)
 
-        return { "ui": { "images": results } }
+        return { "ui": { "images": results},  "result": (s3_image_paths,) }