Fixed key_stranslation (from set to dict)

python/s2snow/fsc_config.py

@@ -564,7 +564,7 @@ class FscConfig:
     def dump_configuration(self, dump_path, input_dir, log, chain_version, product_counter):
         # Get the fields as a dictionary
         conf_keys = ["dem", "tcd", "water_mask", "config_file"]
-        key_translation = {"tcd", "tcd_file"}
+        key_translation = {"tcd": "tcd_file"}
         full_data = vars(self)
         data = {key: full_data[key_translation.get(key, key)] for key in conf_keys}
         data["output_dir"] = dump_path