upped transformers ver to 4.35

Author: younesbelkada

setup.cfg

@@ -37,7 +37,7 @@ install_requires =
     accelerate>=0.22.0
     huggingface-hub>=0.11.1,<1.0.0
     tokenizers>=0.13.3
-    transformers>=4.32.0,<4.35.0  # if you change this, please also change version assert in petals/__init__.py
+    transformers>=4.35.0 # 4.35.0 is the minimum that contains modeling_attn_mask_utils.py
     speedtest-cli==2.1.3
     pydantic>=1.10,<2.0  # 2.0 is incompatible with hivemind yet
     hivemind==1.1.10.post2