Fixed error in huggingface adapter.

[BlueCrescent]

What does this PR do?

Fixed error caused by changes to transformer library. Also added skip conditions for hf adapter tests so that they are less likely to be skipped.

General Changes

• Error fix
• Modified skip condition for corresponding tests:
  • Only 1 GPU required instead of 2 GPUs and RANK environment variable being set.

Checklist before submitting final PR

• My PR is minimal and addresses one issue in isolation
• I have merged the latest version of the target branch into this feature branch
• I have reviewed my own code w.r.t. correct implementation, missing type hints, proper documentation, etc.
• I have run a sample config for model training
• I have checked that all tests run through (python tests/tests.py)
• I have updated the internal changelog (CHANGELOG_DEV.md)