part of #5882

Description

a workaround to not installing MetricsReloaded when packaging.
once pip install MetricsReloaded is made available we can undo the workaround.

workflow tested https://github.com/Project-MONAI/MONAI/actions/runs/3984778767/jobs/6831377542

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• Breaking change (fix or new feature that would cause existing functionality to change).
• New tests added to cover the changes.
• Integration tests passed locally by running ./runtests.sh -f -u --net --coverage.
• Quick tests passed locally by running ./runtests.sh --quick --unittests --disttests.
• In-line docstrings updated.
• Documentation updated, tested make html command in the docs/ folder.