Improve validation in SetModelVersionProperty to prevent both alias and version from being set simultaneously and add unit tests for validation

[NazaninAnsarii]

Summary of Changes:
This Pull Request improves the validation in the SetModelVersionProperty function to prevent both alias and version from being set simultaneously. Additionally, new unit tests have been added to ensure the correctness of these validations.

Reason for Changes:
These changes are made to avoid errors caused by setting both alias and version at the same time, enhancing the robustness and stability of the code.

Tests:
New unit tests have been written to ensure that the validation works correctly and provides appropriate error messages when necessary.

Impact of Changes:
These changes affect the behavior of the SetModelVersionProperty function and contribute to the overall quality and reliability of the codebase.

[justinmclean]

We use spotless to ensure that the code is consistently formatted. You'll need to run ./gradlew :api:spotlessApply and commit the changes to fix the CI issue.

[justinmclean]

@NazaninAnsarii are you still working on this?