feat(inputs.redfish): Add token based authentication mechanism

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Hi to everyone,
I don't know if is already implemented, but I need to pass the auth token as parameter, when I use redfish input plugin to retrieve metrics. I don't found in the documentation any kind of field in the configuration file that give me this possibility.
Thanks in advance

Start by locating the inputs.redfish plugin and its configuration and authentication handling. Check the plugin's existing tests or add focused coverage for token-based authentication, with completion shown by successful metric retrieval using a configured token.

Written by the indexing model from the issue text.