Feature request: Support Bicep What-If Result Format config

It would be nice if this was configurable when calling this action: https://learn.microsoft.com/en-us/azure/azure-resource-manager/bicep/deploy-what-if?tabs=azure-cli%2CCLI#result-format

Start by reading the GitHub Action's calling configuration and the linked Azure Bicep What-If result format documentation. Identify how the result format can be exposed as an action option, then verify that callers can select the documented formats and that the default behavior remains unchanged.

Written by the indexing model from the issue text.