* checkpoint model on first step callback
* remove debug
* add test cases; update existing tests not to save on first step
* move test out of solo
* delete
* default to False
* typo
* make sure to validate the config before normalizing so defaults get set
* validation not needed for particular test
* remove duplicate validations
* set qlora correctly
* add helper to verify the correct model output file exists
* more checks using helper
* chore: lint
* fix import and relora model check
* workaround for trl trainer saves
* remove stray print
* reduce test concurrency to avoid HF rate limiting, test suite parity
* make val_set_size smaller to speed up e2e tests
* more retries for pytest fixture downloads
* val_set_size was too small
* move retry_on_request_exceptions to data utils and add retry strategy
* pre-download ultrafeedback as a test fixture
* refactor download retry into it's own fn
* don't import from data utils
* use retry mechanism now for fixtures
* also fix multipack for falcon and add smoke tests
* make sure to handle special tokens and added tokens for lora
* fix reference to model_type
* fix tests for falcon
* fix stray typo
* fixes for smoke tests
