[Modules] Updated Managed Identity API Version and Added Federated Identity Credential

[ahmadabdalla]

Description

• Updated the API version for the User Assigned Identity module to the latest published version.
• Added support for Federated Identity credential child module. Used for workload identity scenarios with AKS.
• Added min test case

Pipeline references

Pipeline

Type of Change

• New feature (non-breaking change which adds functionality)

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code