Pin protobuf>=6.33.4 to eliminate security logs

Author: RizwanMunawar

requirements.txt

@@ -11,7 +11,7 @@ scipy>=1.4.1
 torch>=1.7.0,!=1.12.0
 torchvision>=0.8.1,!=0.13.0
 tqdm>=4.41.0
-protobuf==4.25.8
+protobuf>=6.33.4
 
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