[RFE] Support Env Variables for BIOS password modification Workflows

[sadsfae]

In the same vein as #496 we should also expand this scope to old_password and new_password for these operations:

https://github.com/redhat-performance/badfish?tab=readme-ov-file#set-bios-password
https://github.com/redhat-performance/badfish?tab=readme-ov-file#remove-bios-password