`mavisp` crashes in some cases in which the `metadata.yaml` file of one entry is not in the right format

[mtiberti]

command line:

mavisp -d /data/raw_data/computational_data/mavisp_data_saturation/ -o 11112025_ALL -e ARID3A,CDKN2A-ARF -f

traceback:

Traceback (most recent call last):
  File "/usr/local/envs/mavisp/bin/mavisp", line 8, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/mavisp/mavisp.py", line 145, in main
    mfs = MAVISpFileSystem( data_dir=in_path,
                            exclude_proteins=excluded_proteins,
                            include_proteins=included_proteins,
                            modes=args.modes)
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/mavisp/core.py", line 64, in __init__
    self.dataset_tables[mode_name] = self._gen_dataset_table(mode, include=include_proteins, exclude=exclude_proteins)
                                     ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/mavisp/core.py", line 93, in _gen_dataset_table
    metadata, metadata_mavisp_criticals = mode.parse_metadata(self.data_dir, system)
                                          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/mavisp/modes.py", line 98, in parse_metadata
    metadata = self._parse_metadata_file(data_dir, system, self.name)
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/mavisp/modes.py", line 34, in _parse_metadata_file
    return yaml.safe_load(fh)
           ~~~~~~~~~~~~~~^^^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/__init__.py", line 125, in safe_load
    return load(stream, SafeLoader)
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/__init__.py", line 81, in load
    return loader.get_single_data()
           ~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ~~~~~~~~~~^^
  File "/usr/local/envs/mavisp/lib/python3.13/site-packages/yaml/parser.py", line 438, in parse_block_mapping_key
    raise ParserError("while parsing a block mapping", self.marks[-1],
            "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block mapping
  in "/data/raw_data/computational_data/mavisp_data_saturation/AMER1/simple_mode/metadata.yaml", line 1, column 1
expected <block end>, but found '-'
  in "/data/raw_data/computational_data/mavisp_data_saturation/AMER1/simple_mode/metadata.yaml", line 8, column 1