Replace hf models with dummies

[javiermtorres]

All modes that were previously downloaded from HF have been substituted with the dummy models. Dummy model generation works fine through the create_dummy_model-py (yet to be properly packaged as a runnable script), but the outputs are now part of the repo, so there is no need for additional generation. cargo test should work out of the box.

Closes #280

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.96970% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
encoderfile/src/build_cli/model.rs	87.50%	1 Missing ⚠️

Files with missing lines	Coverage Δ
encoderfile/src/build_cli/config.rs	90.95% <100.00%> (ø)
encoderfile/src/build_cli/tokenizer.rs	83.76% <100.00%> (-8.98%)	⬇️
...e/src/build_cli/transforms/validation/embedding.rs	88.00% <100.00%> (+0.50%)	⬆️
...derfile/src/build_cli/transforms/validation/mod.rs	92.12% <100.00%> (+0.32%)	⬆️
...ld_cli/transforms/validation/sentence_embedding.rs	88.60% <100.00%> (+0.44%)	⬆️
...i/transforms/validation/sequence_classification.rs	89.61% <100.00%> (ø)
..._cli/transforms/validation/token_classification.rs	89.33% <100.00%> (+0.14%)	⬆️
encoderfile/src/dev_utils/mod.rs	97.91% <ø> (ø)
encoderfile/src/build_cli/model.rs	91.83% <87.50%> (-5.79%)	⬇️

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