Update transformers

Author: vblagoje

pyproject.toml

@@ -49,7 +49,7 @@ dependencies = [
   "requests",
   "httpx",
   "pydantic<2",
-  "transformers==4.39.3",
+  "transformers>=4.46,<5.0",
   "pandas",
   "rank_bm25",
   "scikit-learn>=1.3.0", # TF-IDF and metrics
@@ -86,7 +86,7 @@ dependencies = [
 
 [project.optional-dependencies]
 inference = [
-  "transformers[torch,sentencepiece]==4.39.3",
+  "transformers[torch,sentencepiece]>=4.46,<5.0",
   "sentence-transformers<=3.0.0,>=2.3.1",  # See haystack/nodes/retriever/_embedding_encoder.py, _SentenceTransformersEmbeddingEncoder
   "huggingface-hub>=0.5.0",
 ]