Fix transformers version for diffusers compatibility

pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "PyPDF2>=3.0.0",
     "pdfplumber>=0.10.0",
     "torchxrayvision>=0.0.37",
-    "transformers @ git+https://github.com/huggingface/transformers.git@88d960937c81a32bfb63356a2e8ecf7999619681",
+    "transformers>=4.40.0,<4.50.0",
     "datasets>=2.15.0",
     "tokenizers>=0.20,<0.21",
     "sentencepiece>=0.1.95",