fix(action): fix input config_data

[beiertu-mms]

The value for the option config_data can contain spaces, as it's a serialized YAML object (see also yamllint doc).
Therefore it needs to be enclosed with quotes to prevent the shell to interpret the value as arguments.

Otherwise the given configuration will be interpret as arguments and
yamllint will complain, which looks something like

yamllint . --format auto \
    --config-data {extends: default, rules: {line-length: {max: 120}}}
  
usage: yamllint [-h] [-] [-c CONFIG_FILE | -d CONFIG_DATA] [--list-files]
                [-f {parsable,standard,colored,github,auto}] [-s]
                [--no-warnings] [-v]
                [FILE_OR_DIR ...]
yamllint: error: unrecognized arguments: default, rules: {line-length: {max: 120}}}