feat: enable passing use_fast to the underlying transformers' pipeline (#5655)

* copy instead of deepcopy

* fix pylint

* add use_fast

* add release note

* remove unrelevant changes

* black fix

* fix bug

* black

* bug fix

haystack/nodes/prompt/invocation_layer/hugging_face.py

@@ -208,6 +208,7 @@ class HFLocalInvocationLayer(PromptModelInvocationLayer):
             "torch_dtype": torch_dtype,
             "model_kwargs": model_kwargs,
             "pipeline_class": kwargs.get("pipeline_class", None),
+            "use_fast": kwargs.get("use_fast", True),
             **hub_kwargs,
         }
         return pipeline_kwargs

releasenotes/notes/enable_pass_use_fast_to_transformers-b5fdf14d69aa58ec.yaml

@@ -0,0 +1,3 @@
+---
+enhancements:
+  - enable passing use_fast to the underlying transformers' pipeline

test/prompt/invocation_layer/test_hugging_face.py

@@ -59,8 +59,8 @@ def test_constructor_with_model_name_only(mock_pipeline, mock_get_task):
     assert kwargs["task"] == "text2text-generation"
     assert kwargs["model"] == "google/flan-t5-base"
 
-    # no matter what kwargs we pass or don't pass, there are always 13 predefined kwargs passed to the pipeline
-    assert len(kwargs) == 13
+    # no matter what kwargs we pass or don't pass, there are always 14 predefined kwargs passed to the pipeline
+    assert len(kwargs) == 14
 
     # and these kwargs are passed to the pipeline
     assert list(kwargs.keys()) == [
@@ -74,6 +74,7 @@ def test_constructor_with_model_name_only(mock_pipeline, mock_get_task):
         "torch_dtype",
         "model_kwargs",
         "pipeline_class",
+        "use_fast",
         "revision",
         "use_auth_token",
         "trust_remote_code",
@@ -248,8 +249,8 @@ def test_constructor_with_invalid_kwargs(mock_pipeline, mock_get_task):
     # invalid kwargs are ignored and not passed to the pipeline
     assert "some_invalid_kwarg" not in kwargs
 
-    # still our 13 kwargs passed to the pipeline
-    assert len(kwargs) == 13
+    # still our 14 kwargs passed to the pipeline
+    assert len(kwargs) == 14
 
 
 @pytest.mark.unit
@@ -287,8 +288,8 @@ def test_constructor_with_various_kwargs(mock_pipeline, mock_get_task):
     assert kwargs["device_map"] and kwargs["device_map"] == "auto"
     assert kwargs["revision"] == "1.1"
 
-    # still on 13 kwargs passed to the pipeline
-    assert len(kwargs) == 13
+    # still on 14 kwargs passed to the pipeline
+    assert len(kwargs) == 14
 
 
 @pytest.mark.integration