rake: fix images:manifest task to handle corrupted files.

lib/tasks/images.rake

@@ -20,6 +20,16 @@ namespace :images do
         h: file.height,
       }
 
+      puts hash.to_json
+    rescue StandardError => e
+      hash = {
+        path: File.absolute_path(path),
+        name: File.basename(path, ".*"),
+        md5: file.md5,
+        size: file.file_size,
+        error: e.message,
+      }
+
       puts hash.to_json
     end
   end