Exporter configuration flag rename for the secrets file?

[ArKam]

Hi team

the exporter currently use the following configuration flag name for the secrets file integration: secrets.static and associated variable: secretsStatic as in: https://github.com/gebn/bmc_exporter/blob/master/bmc_exporter.go#L82

A better suited name would rather be: secrets.file and associated variable name: secretsFile

I know it's not really a big deal per see, but I think it's a plus for users/operators integration experience. thanks!